173 articles found.The first 100 results are shown.
- An unusual presentation of retinal migraine: a case report
Anum Ashfaq
European Journal of Medical Case Reports. 2020; 4(1): 29-31. - Pulmonary aspergillosis is a rare finding in diabetic patients: a case report
Anum Ashfaq
European Journal of Medical Case Reports. 2020; 4(10): 336-338. - Association of upper extremity pain with functional disability in swimmers.
Sawera Sonam, Fareeha Amjad, Ashfaq Ahmed
Rawal Medical Journal. 2021; 46(1): 199-201. - Correlation of sleep quality and psychological parameters among health care students
Anum Ashfaq, Aiman Farogh Anjum, Muhammad Faiq Ali, Humaira Fayyaz Khan
Rawal Medical Journal. 2022; 47(4): 888-891. - Comparison of quilting of mucoperichondrial flaps with routine nasal packing in patients undergoing septoplasy
Mirza Nasheed Baig, Ashfaq Ahmed Malik, Muhammad Ajmal, Ahmed Hasan Ashfaq
Rawal Medical Journal. 2012; 37(2): 187-190. - Cardiogenic dementia improved after permanent pacemaker implantation: a case report
Anum Ashfaq, Pervez Khan
European Journal of Medical Case Reports. 2020; 4(10): 327-331. - Interventions Used for the treatment of Radiotherapy Induced Trismus: A Systematic Review of the Literature
Mohammad Annas Aslam, Obaid Bajwa, Anum Ahmed Raja, Nissa Khan,
Journal of The Pakistan Dental Association. 2022; 31(3): 147-152. - Severe hyponatremia as a presenting sign of panhypopituitarism due to non-functioning pituitary adenoma: a case report
Faryal Mehmood, Anum Ashfaq, Muhammad Atif Beg
European Journal of Medical Case Reports. 2019; 3(1): 24-27. - Statistical Analysis and Prediction of Diabetes Disease Using Machine Learning Algorithms
Saddam Hussain, Saira Raiz, Anum Iftikhar
Elementary Education Online. 2020; 19(4): 4214-4223. - Students' Perceptions of Bullying at Schools: A Phenomenological Study of Students Bullying Experiences in Their Schooling
Dr Saira Taj, Komal Imdad, Warda Anum, Javerea Rafique
Elementary Education Online. 2020; 19(2): 1180-1185. - The Determinant of birth weight of newly born of Punjab , A study of punjab, Pakistan
Saddam Hussain, Muhammad khuram Aziz, Anum Iftikhar
Elementary Education Online. 2020; 19(3): 2689-2700. - Impact Of Self Esteem On Sports Performance of Teenage Girls During Covid-19
Saman Junaid Chattha, Sumaira Sajid, Anum Shafique, Sarah Arshi
Elementary Education Online. 2020; 19(4): 5363-5374. - A Case Study of Pre-service Teachers Perceptions and Practices about Using Arts in Education in a Women University from Lahore
Dr Saira Taj, Dr Moafia Nader, Warda Anum, Sehrish Israr, Javerea Rafique
Elementary Education Online. 2020; 19(3): 2040-2047. - Adaptation of VB (Vartan Bhanji ) in Urban Centers: Tracking Signs of Cultural Lag in an Evolving Pakistan
Dr. Noreen Saher, Tasmia Matloob, Latafat Aziz, Anum Awan, Shayeema Farooqi
Elementary Education Online. 2021; 20(5): 3608-3613. - Impact of human-screen interaction in developing computer vision syndrome:a cross sectional survey among university teachers
Huzaifa Ather Rajar, Mehek Anum, Anum jawaid Sultan, Angela John Gill
Rawal Medical Journal. 2023; 48(3): 676-680. - Medical versus surgical treatment for early ethmoidal nasal polyps
Ashfaq Ahmed Malik, Fatima Usman, Ahmed Hasan Ashfaq, Naeema Ahmed
Rawal Medical Journal. 2012; 37(3): 309-312. - Discursive Construction of Professional Identity - A Gender based Analysis of Workplace Meetings
Atia Anwer Zoon, Dr. Nighat Ashfaq
Elementary Education Online. 2021; 20(4): 3151-3161. - Paralysis Agitans: An Assessment Of The Determinants And Therapeutic Tactics
Amit Gupta, Ashfaq Ahmad Shah, Avnish Chauhan
Elementary Education Online. 2021; 20(2): 2679-2690. - Multiple Drug Resistance In Pathogens: A Surging Public Health Concern Imperative To Scrutinize
Ashfaq Ahmad Shah , Amit Gupta , Nitin Kumar
Elementary Education Online. 2021; 20(4): 4441-4451. - HETEROGENEOUS ELECTRON TRANSFER KINETICS OF
DIBENZOYLFERROCENE IN APROTIC SOLVENTS
Adnan Ahmed Khan, Rashida Parveen, Maria Ashfaq
European Chemical Bulletin. 2013; 2(11): 873-879. - Knowledge, attitude and practices of Pakistani doctors in the early period of COVID-19 Pandemic
Anum Arif, Mohammad Jamal, Ahsin Manzor Bhatti, Muhammad Tariq Khan, Mannan Masud
Rawal Medical Journal. 2021; 46(4): 787-791. - Theological Interpretations Of Chapter-55 Of Qur’ān: A Scientific Study Of Selected Themes
Dr. Muhammad Ashfaq Dr. Shah Junaid Ahmad Hashmi , Dr. Abzahir Khan
Elementary Education Online. 2021; 20(2): 3240-3257. - The Impact 0f Teachers Non-Verbal Communication Strategies- Pakistani ELT Perspective
Zafar Iqbal Bhatti , Anila Khan , Saqib Javed , Sadia Ashfaq
Elementary Education Online. 2021; 20(1): 5332-5349. - Comparison of frequency of synechiae formation in patients of sinonasal polyposis undergoing endoscopic sinus surgery with and without using microdebrider
Tabassum Aziz, Ahmed Hasan Ashfaq, Kashif Mahmood, Ashfaq Ahmed Malik, Faisal Bashir
Rawal Medical Journal. 2017; 42(3): 363-365. - Causes of Migration in Baluchistan; (A case study)
Seemab Abid, Noreen Qudoos, Ambreen Masood, Mahgul Khajjak, Kanwal Ashfaq
Elementary Education Online. 2021; 20(5): 7879-7884. - Noughts and crosses: The uncertain future of TB control in India
Ashfaq Hasan
Journal of Medical and Allied Sciences. 2017; 7(1): 1-2. - Chronic inflammation: The enemy within
Ashfaq Hasan
Journal of Medical and Allied Sciences. 2016; 6(2): 45-45. - The book of infectious diseasesa living document
Ashfaq Hasan
Journal of Medical and Allied Sciences. 2014; 4(2): 54-55. - The singular case of the pleural effusion
Ashfaq Hasan
Journal of Medical and Allied Sciences. 2015; 5(2): 24-25. - Pneumococcal disease: Closing the gap
Ashfaq Hasan
Journal of Medical and Allied Sciences. 2015; 5(1): 1-1. - Why another journal in medicine?
Ashfaq Hasan
Journal of Medical and Allied Sciences. 2011; 1(1): 1-1. - BCG: The waning of a vaccine
Ashfaq Hasan
Journal of Medical and Allied Sciences. 2014; 4(1): 1-1. - TB or not TB: that is still the question
Ashfaq Hasan
Journal of Medical and Allied Sciences. 2013; 3(2): 41-42. - Analgesic prescriptions: time for painful choices
Ashfaq Hasan
Journal of Medical and Allied Sciences. 2013; 3(1): 1-2. - Old staining methods: Dyeing a slow death
Ashfaq Hasan
Journal of Medical and Allied Sciences. 2011; 1(2): 52-52. - Prevalence of work-related upper back and thoracic pain among health care professionals Lahore, Pakistan
Hira Bano Javaid, Fahad Tanveer, Ashfaq Ahmad, Syed Amir Gilani, Salman Zafar
Rawal Medical Journal. 2019; 44(2): 362-364. - Prevalence of patellofemoral pain disorder or anterior knee pain in both genders ages between 18-35.
Zoya Mujahid, Waqar Afzal, Ashfaq Ahmad, Syed Amir Gilani, Fatima Akram, Asifa Ashiq
Rawal Medical Journal. 2019; 44(1): 86-88. - A Single-Centre Experience of an Anesthesia-Led Pediatric Peripherally Inserted Central Catheter Service at a Specialized Cancer Institute
Umair Umair khalid, muhammad asif asif, muhammad faisal faisal, saad ur rahman saad, khaurram ijaz khaurram ijaz, anum afzal anum
Journal of Medical Research and Reviews. 2024; 2(2): 35-43. - Antibiotic resistance: Clear and present danger
Ashfaq Hasan
Journal of Medical and Allied Sciences. 2012; 2(1): 01-. - Occurrence and pattern of clubfoot deformity in Khyber PakhtunKhua: Hospital based physical rehabilitation center perspective
Bostan Muhammad, Anum Aftab, Muhammad Kamran, Ghulam Saqulain
Rawal Medical Journal. 2023; 48(4): 889-893. - Chemical Composition of Non-Infected Upper Urinary Tract Calculi
Ahmad Rahman,* Khalid Farooq Danish,*Afsheen Zafar,*Ashfaq Ahmad,**A. Rashid
Chaudhry
Rawal Medical Journal. 2008; 33(1): 56-57. - Comparison of complications in teenage pregnancy and pregnancy in ideal age group
Humaira Tahir, Sana ashfaq, Maria Jabeen, Mubushra Samina, Tahir Hussain Khan
Rawal Medical Journal. 2022; 47(3): 594-597. - Frequency of phantom limb pain and stump pain in amputees during the first six months following limb amputation
Kiran Bashir, Amna Maqsood, Sumaira Afzal, Komal Shehzadi, Anum Abid, Sheza Saeed
Rawal Medical Journal. 2022; 47(4): 921-924. - Cigarette smoking survey of citizens of Karachi
Muhammad Asif Jaleel, Rozina Noreen, Abdul Hameed, Abida Parveen, Ashfaq Ahmad Javid, Kashif Ali Hashmi, Kausar Naseem Malik
Rawal Medical Journal. 2003; 28(2): 48-51. - Association between fear avoidance belief and pain in pregnant women with pelvic girdle pain
Syeda Rukhe Zehra, Faiza Sharif, Ashfaq Ahmad, Syed Amir Gilani
Rawal Medical Journal. 2020; 45(2): 338-341. - A Case of Gastroduodenal Strongyloidiasis Causing Protein Losing Enteropathy
sandheep janardhanan, Mary George, Benoy Sebastian, SUNIL Mathai, ashfaq ahmed, Saji John Varghese
Journal of Microbiology and Infectious Diseases. 2020; 10(4): 237-239. - Prevalence of neck pain in goldsmiths
Muhammad Zain ul Abideen, Waqar Afzal, Fahad Tanveer, Qasim Rafique, Ashfaq Ahmad, Ayesha Malik
Rawal Medical Journal. 2018; 43(4): 691-693. - Comparison of efficacy of topical clotrimazole with 3 % salicylic acid in fungal infections of external auditory canal.
Ashfaq Ahmed Malik, Safdar Nawaz Malik, Muhammad Azeem Aslam, Danyal Rasheed
Rawal Medical Journal. 2012; 37(1): 46-49. - Association between neck pain and functional disability among nurses
Iqra Khadim, Fahad Tanveer, Ashfaq Ahmad, Syed Amir Gillani
Rawal Medical Journal. 2018; 43(2): 242-244. - Association of pain intensity with quality of life and functional disability in university students with lumbago
Afia Fatima, Fahad Tanveer, Ashfaq Ahmad, Syed Amir Gillani
Rawal Medical Journal. 2018; 43(1): 81-83. - Ultrasonic Debridement With Stem Cell Therapy of Suspensory Branch Desmitis in an Equine Patient
Srinath Kamineni, Alan Ruggles, Hamza Ashfaq,
Open Veterinary Journal. 2019; 9(1): 54-57. - Effects of diabetes associated complications on quality of life in patients with type 2 diabetes
Farheen Shoukat, Fahad Tanveer, Sana Shahid, Ashfaq Ahmad, Syed Amir Gilani
Rawal Medical Journal. 2019; 44(1): 28-31. - Frequency of jumpers knee in male basketball players
Ateeb Ur Rehman, Ashfaq Ahmed, Amir Syed Gilani
Rawal Medical Journal. 2019; 44(2): 385-387. - Association among shoulder pain, working hours and device usage in male bankers, Lahore, Pakistan
Mehreen Aslam Gill, Fahad Tanveer, Ashfaq Ahmad, Syed Amir Gillani
Rawal Medical Journal. 2018; 43(2): 239-241. - Antimicrobial resistance trends of Typhoidal Salmonellae In Southern Pakistan
Altaf Ahmed Shaikh, Anum Shaikh, Amber Tahir
Rawal Medical Journal. 2019; 44(1): 7-10. - The Effect of Human Capital Accumulation and Education on Economic Growth
Ashfaq Ahmad; Shahbaz Ahmad; Muhammad Mobeen Shafqatc; Sadia Bano*; Humaira Ijaz; Muhammad Ilyas; Shahzad Mushtaq; Yasin Munir
Elementary Education Online. 2021; 20(5): 7688-7701. - Assessment and factors associated with wasting in under five children in Faisalabad, Pakistan
Anum Afzal, Nazia Malik
Rawal Medical Journal. 2020; 45(3): 690-693. - Penile strangulation: A study of fifteen cases.
Masroor Hussain Malik, Zein el Amir, Muhammad Ali, Ashfaq Ahmed, Muhammad Afzal Farooqi
Rawal Medical Journal. 2012; 37(1): 30-33. - Knowledge and attitude towards COVID 19 vaccine among health care workers; A cross sectional study from Karachi, Pakistan
Muhammad Kashif Syed, Darshan Kumar, Gul Anum, Zunaira Nawaz, Rashid Qadeer, Bilquees Saba
Rawal Medical Journal. 2023; 48(1): 82-87. - Comparison of the psychological distress among medical students of government and private medical universities amid COVID 19 pandemic
Maryam Sadiq, Noman Sadiq, Muniba Zafar, Rimsha Pervaiz, Anum Sadiq, Zunera Hakim
Rawal Medical Journal. 2024; 49(3): 543-546. - Knowledge, perception, and attitude of pregnant women towards the role of physical therapy in antenatal care: a cross sectional study in Lahore, Pakistan
Hafiza Sana Ashraf, Dr Ashfaq Ahmad,
Rawal Medical Journal. 2019; 44(4): 867-870. - Prevalence of upper extremity pain among traffic police, Lahore, Pakistan
Ghanea Ahmad, Fahad Tanveer, Ashfaq Ahmad, Syed Amir Gillani
Rawal Medical Journal. 2018; 43(1): 64-67. - CBCT based assessment of first molar inclination in adult subjects.
Muhammad Ashfaq, Mubassar Fida, Farheen Fatima,
Journal of The Pakistan Dental Association. 2023; 32(1): 4-7. - Frequency and determinants of malpresentation in singleton pregnancy in Ayub Teaching Hospital, Abbottabad, Pakistan
Zainab Manan, Taimoor Hussain, Raana Kanwal, Sanya Hameed, Muhammad kamran khan, kalsoom sahibzada, Ashfaq Ahmed, Shehla Noor
Rawal Medical Journal. 2017; 42(4): 499-502. - Upper extremity musculoskeletal disorders in female versus male workers
Sana Hanif, Ashfaq Ahmad, Syed Amir Gillani
Rawal Medical Journal. 2020; 45(2): 399-402. - Association of ergonomic factors causing muscular pain in dentistry
Areeba Naveed ul Hassan, Faiza Sharif, Ashfaq Ahmad
Rawal Medical Journal. 2021; 46(4): 928-931. - Quality of life among Grade 1 knee osteoarthritis patients
Bushra Faisal, Ameena Amjad, Anum Tariq
Rawal Medical Journal. 2023; 48(1): 115-118. - Impact of foot function in healthcare professionals with flat foot: a cross sectional study
Hafsa Khalid, Fareeha Amjad , Ashfaq Ahmed,
Rawal Medical Journal. 2019; 44(3): 641-643. - Effects of conventional physical therapy with and without muscle energy techniques for treatment of Upper Cross Syndrome
Arif Ali Rana, Ashfaq Ahmad, Syed Amir Gillani, Muhammad Qasim Idrees, Iqra Awan
Rawal Medical Journal. 2020; 45(1): 127-132. - Comparison of upper extremity muscles strength in school going children with and without carrying heavy bags using dynamometer
Amara Liaqat, M Waqar Afzal, Hafiza Sana Ashraf, Ashfaq Ahamd
Rawal Medical Journal. 2021; 46(3): 702-704. - Effects of Kegel exercises for the management of pelvic floor muscles weakness after episiotomy
Mehr un Nisa, Arooj Fatima, Sundas Sohail, Shiza Kazmi, Ashfaq Ahmad, Syed Amir Gilani
Rawal Medical Journal. 2020; 45(4): 830-833. - Prevalence of cataract and prescription trends in population of Sialkot, Punjab, Pakistan
Ahmed Umer Sohaib, Tassawer Meran, Anum Yasmeen, Samie Ullah, Muhammad Tahir, Asma Fareed Khan
Rawal Medical Journal. 2024; 49(1): 75-77. - Relationship between obesity and health-related quality of life in school going children
Wajiha Yousaf, Fareeha Amjad, Adnan Hashim, Ashfaq Ahmad
Rawal Medical Journal. 2022; 47(2): 457-459. - Frequency of upper limb functional limitations in breast cancer survivors
Roshaan Sethi, Faiza Sharif, Ashfaq Ahmed, Amir Gillani
Rawal Medical Journal. 2021; 46(2): 286-288. - Oral health care awareness among nursing students of Karachi, Pakistan
Raima Bashir, Kulsoom Fatima Rizvi, Kiran Fatima, Mushtaq Ahmed, Anum Sami
Rawal Medical Journal. 2021; 46(1): 106-110. - Effectiveness of routine physical therapy with and without muscle energy technique in patients with upper crossed syndrome
Hira Shahzad, Arooj Fatima, Ashfaq Ahmad, Zaheer Abbas Khan, Syed Amir Gilani
Rawal Medical Journal. 2022; 47(3): 654-657. - Nanotechnology in Medicine: Fine cures for the future
Ashfaq Hasan, B. Jagannadh
Journal of Medical and Allied Sciences. 2012; 2(2): 29-30. - Frequency and severity of insomnia in chronic low back pain
Bakhtawar Majid, Mohammad Asim Arif, Rabia Saeed, Ashfaq Ahmad, Mehreen Fatima
Rawal Medical Journal. 2017; 42(4): 528-530. - Frequency of shoulder pain among overhead throwing athletes
Hassan Shaheen, Ashfaq Ahmad, Syed Amir Gilani, Muhammad Waqas, Munam Raza
Rawal Medical Journal. 2020; 45(1): 227-229. - Association of previous radiation exposure in patients with known malignancy
Muhammad Akhtar Awan, Shumaila Memon, Lubna Shamshad Jumani, Hussain Rashid, Sidra Wajahat, Maria Anum
Rawal Medical Journal. 2024; 49(1): 3-6. - Musculoskeletal pain and discomfort among medical students of University of Lahore, Pakistan
Asifa Qurat ul Ain, Filza Shoukat, Mehak Hamna, Ashfaq Ahmed, Mehreen Fatima
Rawal Medical Journal. 2018; 43(2): 252-256. - Level of stress and its association with socio demographic factors among undergraduate physiotherapy students of the University of Lahore
Adnan Hashim, Ashfaq Ahmad, Faiza Sharif, Ifrah Mustafa, Sana Shahid
Rawal Medical Journal. 2021; 46(2): 420-422. - Validity and reliability of Pelvic organ prolapse simple screening inventory in women population of Faisalabad, Pakistan
Ifrah Mustafa, Ashfaq Ahmad, Umair Arshad, Anam Iftikhar, Huma Mehwish, Sadia Khan
Rawal Medical Journal. 2020; 45(2): 427-429. - Comparison of Mulligan sustained natural apophyseal glides verses Mckenzie extension exercises on disability and functional outcomes in patients with acute nonspecific low back pain
Dileep Kumar Lohana, Umair Ahmad, Faiza Sharif, Ashfaq Ahmad, Amir Ali Geilani, Salwa Atta
Rawal Medical Journal. 2021; 46(2): 469-472. - Comparison of mobilization with movement and dorsiflexion night splint with and without routine exercises in patients with plantar fasciitis
Sidrah Shabbir, Ashfaq Ahmad, Arooj Munawar, Kashif Siddique, Sadia Perwaiz
Rawal Medical Journal. 2022; 47(3): 650-653. - Magnitude of patients satisfaction with nursing care in 152 patients of tertiary care hospital; A cross sectional descriptive study
Sehrish Naz, Ashfaq Ahmad, Dildar Muhammad, Rashida Bibi
Annals of Medical Research. 2021; 28(9): 1720-4. - Prevalence of flat foot among young adults and its relation with body mass index
Ashfaq Ahmed, Shehbaz Ahmed
Rawal Medical Journal. 2019; 44(3): 644-645. - Pain intensity and level of disability in patients with upper extremity fractures
Mahnoor Rao, Arooj Fatima, Ashfaq Ahmed, Syed Amir Gilani
Rawal Medical Journal. 2020; 45(3): 641-644. - Is it time to review diagnostic criteria of ovarian adenocarcinoma as well? Lessons from Hepatocellular carcinoma
Asif Riaz Khan, Fauzia Abdus Samad, Abdus Samad Syed, Sharmin Arif, Anum Rafiq Khan, Aalia Mushtaq Chaudary
Rawal Medical Journal. 2023; 48(2): 477-480. - Frequency of various types of congenital pigment cell naevi in newborns within first 72 hours after birth in a tertiary care hospital of Karachi, Pakistan
Ibnat Islam, Reema Mirza, Areesha Shahid, Humaira Talat, Fareheen Ashfaq, Tayyaba Iqbal
Rawal Medical Journal. 2024; 49(4): 800-802. - Current trends and possible therapeutic options against COVID-19
Uzair Ahmed, Usman Ali Ashfaq, Saba Khaliq, Muhammad Qasim, Shah Jahan, Muhammad Shareef Masoud
Journal of Microbiology and Infectious Diseases. 2020; 10(3): 110-120. - Mesenchymal stem cell therapy in retinitis pigmentosa patients: A systematic review
Abdulkarim Bushnag, Qaisar Ashfaq
International Journal of Medicine in Developing Countries. 2024; 8(1): 315-323. - Association of physical activity and satisfaction with life among DPT students of Azra Naheed Medical College, Lahore, Pakistan
Fahad Tanveer, Ashfaq Ahmad, Muhammad Adeel, Adnan Afzal
Rawal Medical Journal. 2017; 42(4): 518-521. - The impact of varying number of OSEM iterations on standardized uptake value and image quality of PET/CT scan
Babar Ali, Afshan Ashfaq, Muhammad Basim Kakakhel
Pakistan Journal of Nuclear Medicine. 2021; 11(1): 36-42. - Comparative accuracy of CT and MRI in diagnosis of pituitary microadenoma
Tayyaba Rafiq, Huma Fatima, Mahwish Niaz, Sehar Anum Khan, Madeeha Minhas, Haseeb Khaliq
Rawal Medical Journal. 2025; 50(2): 329-332. - Prevalence of atrial fibrillation in acute ischemic stroke
Abdul Hameed Kiani, Shiekh Kashif Rahim, Raja Farhat Shoaib, Nisar Ahmed, Khawaja Ashfaq Ahmed, Tanveer Ahmed Raja
Rawal Medical Journal. 2023; 48(2): 309-311. - Skin thickness and internal organ involvement in patients of systemic sclerosis
Fareheen Ashfaq, Humaira Talat, Faisal Ahmed, Maria Mansoor, Reema MIrza, Erum Ashraf
Rawal Medical Journal. 2024; 49(2): 310-313. - Educational Environment in a Multicultural Society to Meet the Challenges of Diversity
Abdus Salam, Ashfaq Akram, Siti Mariam Bujang, Mohamad Nurman Yaman, Mohammad Arif Kamarudin, Harlina Halizah Siraj, Nabishah Mohamad
Journal of Applied Pharmaceutical Science. 2014; 4(9): 110-113. - Integrative evaluation of ventilation-perfusion mismatch in chronic lung diseases using advanced imaging modalities
Maria Asad, Ashfaq Ahmad Shah Bukhari, Muhammad Haseeb, Urooj Bhatti, Asghar Ali Shaikh
Rawal Medical Journal. 2026; 51(1): 41-44. - Awareness About pulmonary tuberculosis among patients visiting a tertiary care hospital in Pakistan
Tahir Iqbal, Zain Rizvi, Haider Bokhary, Junaid Javeed, Asim Ashfaq, Maryam Zahra, Furqan Haider
Rawal Medical Journal. 2018; 43(4): 581-585.
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