Iftikhar, Afshan, Tayeb Asim, Anwar Ul Islam, and Syed Tousif Ahmed. 2018. “ASSOCIATION OF SERUM P1NP (N-TERMINAL PROPEPTIDE OF TYPE1 COLLAGEN) AND BONE MINERAL DENSITY (BMD) IN OSTEOPOROSIS: BMD And P1NP”. Pakistan Armed Forces Medical Journal 68 (2):357-62. https://www.pafmj.org/PAFMJ/article/view/1461.