1. Christoffersen, P., Poll, P.: Peroperative pancreas aspiration biopsies. Acta Pathol. Microbiol. Scand. [Suppl.]212:28, 1970
2. Nieberg, R.K.: Peroperative pancreatic aspirations. Ann. Clin. Lab. Sci.9:11, 1979
3. Ihse, I., Toregard, B.-M., åkerman, M.: Intraoperative fine needle aspiration cytology in pancreatic lesions. Ann. Surg.190:732, 1979
4. Arnesjø, B., Stormby, N., åkerman, M.: Cytodiagnosis of pancreatic lesions by means of fine needle biopsy during operation. Acta Chir. Scand.138:363, 1972
5. Mitty, H.A., Efremidis, S.C., Yeh., H.-C: Impact of fine-needle biopsy on management of patients with carcinoma of the pancreas. AJR137:1119, 1981