Noor, Ayesha, et al. “FREQUENCY OF DIFFERENT CAUSES OF PYREXIA OF UNKNOWN ORIGIN ON BONE MARROW EXAMINATION IN A TERTIARY CARE HOSPITAL: Bone Marrow Examination in PUO”. Pakistan Armed Forces Medical Journal, vol. 64, no. 3, Sept. 2014, pp. 463-7, https://www.pafmj.org/PAFMJ/article/view/1348.