Qayyum, Abdul, and Syed Farrukh Nadeem. “EVALUATION OF SAFETY OF ULTRASOUND-GUIDED ASPIRATIONS AND FINE NEEDLE ASPIRATION BIOPSIES: Safety of Fine Needle Aspiration Biopsies”. Pakistan Armed Forces Medical Journal, vol. 57, no. 1, June 2007, pp. 13-17, https://pafmj.org/PAFMJ/article/view/194.