1. Angelini L., Maceratini R., Bezzi M., Tucci G., Bonifacino A., Bezzi M., Ciulli A., Fegiz G.: Intraoperative high resolution ultrasonography in the localization of occult endocrine pancreatic tumors. The Italian Journal of Surgical Sciences 13: 209–15, 1983.
2. Boissel P., Proye C.: Les tumeurs endocrines du pancréas. Masson, Paris, 1985.
3. Chapuis Y., Hernigou A., Poirier A., Luton J. P., Benali H.: Detection of a pancreatic insulinoma by perioperative real time ultrasonography. Presse Médicale 12: 40, 2535–2536, 1983.
4. Chapuis Y., Hernigou A., Plainfosse M. C., Bonnette P.: Ultrasound imaging in real time during operation for endocrine surgery. Chirurgie 110: 97–104, 1984.
5. Charbonneau J. W., James E. M., Van Heerden J. A., Grant C. S., Sheedy P. F.: Intraoperative real-time ultrasonographic localization of pancreatic insulinoma: initial experience. J. Ultrasound Med. 2 (6): 251–254, 1983.