PREVALENCE OF LOW BACK PAIN AND LEVEL OF KNOWLEDE ABOUT PATIENT HANDLING AND SHIFTING TECHNIQUES AMONG NURSES OF A PUBLIC SECTOR HOSPITAL IN KARACHI A SURVEY. Int J Physio [Internet]. 2016 Apr. 8 [cited 2026 May 7];3(2):233-7. Available from: https://www.ijphy.com/index.php/journal/article/view/222