Mehmood, R., K. M. Sajid, D.-. e-. Sabih, and A. Iqbal. “QUALITATIVE COMPARISON OF LOCALLY PREPARED 99mTc-LABELED METHYLENE DIPHOSPHONATE AND 99mTc-LABELED PYROPHOSPHATE”. The Nucleus, vol. 44, no. 3-4, July 2020, pp. 143-5, http://thenucleuspak.org.pk/index.php/Nucleus/article/view/1022.