1. Primary sarcoma of the gallbladders. Report of three cases;Yasuma;Acta Pathol Jpn,1971
2. Primary sarcoma of the gallbladder;Carpentier;Cancer,1973
3. Primary sarcoma of the gallbladder: A light and electron microscopical study;Willen;Virchows Arch,1982
4. Primary leiomyosarcoma of gallbladder seen on computed tomography and ultrasound;Newmark;Am J Gastroenterol,1986
5. Ackerman's Surgical Pathology;Rosai,1989