Imdad , F. .; Ishaque, F. .; Yasmeen, S. .; Lal, W. .; Sheikh, S. A. .; Nawaz, U. .; Fazleazim; Khanzada, S. . PREVALENCE OF LOW BACK PAIN AMONG THE UNDERGRADUATE STUDENTS OF ISRA UNIVERSITY KARACHI CAMPUS. Int J Physio 2016, 3, 119-123.