HAGELQVIST , EVY, and BERIT ENGSTRÖM. “Electron Microscopy Studies on Cytologic Material Acquired by Fine Needle Biopsy”. Upsala Journal of Medical Sciences 78, no. 3 (November 1, 1973): 153-159. Accessed March 25, 2026. https://ujms.net/index.php/ujms/article/view/7423.