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Sarwar S, Khan AA, Alam A, Butt AK, Shafqat F, Malik K, Ahmad I, Niazi AK.Sarwar S, et al. Among authors: butt ak.J Coll Physicians Surg Pak. 2005 Sep;15(9):528-31.J Coll Physicians Surg Pak. 2005.PMID: 16181569
Sarwar S, Alam A, Izhar M, Khan AA, Butt AK, Shafqat F, Malik K, Ahmed I, Niazi AK.Sarwar S, et al. Among authors: butt ak.J Coll Physicians Surg Pak. 2005 Jul;15(7):418-21.J Coll Physicians Surg Pak. 2005.PMID: 16197871
Ahmad I, Khan AA, Alam A, Butt AK, Shafqat F, Sarwar S.Ahmad I, et al. Among authors: butt ak.J Coll Physicians Surg Pak. 2005 Nov;15(11):701-3.J Coll Physicians Surg Pak. 2005.PMID: 16300706
Ahmad I, Khan AA, Alam A, Butt AK, Shafqat F, Sarwar S.Ahmad I, et al. Among authors: butt ak.J Coll Physicians Surg Pak. 2006 May;16(5):364-7.J Coll Physicians Surg Pak. 2006.PMID: 16756784
Sarwar S, Khan AA, Alam A, Butt AK, Shafqat F, Malik K, Ahmad I, Niazi AK.Sarwar S, et al. Among authors: butt ak.J Ayub Med Coll Abbottabad. 2006 Jan-Mar;18(1):32-5.J Ayub Med Coll Abbottabad. 2006.PMID: 16773966