Saifullah, Huma, et al. “CLINICOPATHOLOGICAL SPECTRUM OF SYNOVIAL SARCOMA AT ARMED FORCES INSTITUTE OF PATHOLOGY, RAWALPINDI, PAKISTAN: Synovial Sarcoma”. Pakistan Armed Forces Medical Journal, vol. 68, no. 3, Oct. 2018, pp. 455-59, https://pafmj.org/PAFMJ/article/view/226.