Sajjad, M.; Kouser, S.; Arshad, F.; Fatima, A.; Tauheed, M. S.; Minhas, S.; Mehmood, M.; Qadri, H.; Mansoori, H. Effectiveness of Bone Marrow Biopsy for the Diagnosis of Pyrexia of Unknown Cause. Int. j. endorsing health sci. res. 2021, 9, 48-54.