K. Ogasawara

Prostate cancer with supraclavicular lymphadenopathy and bulky abdominal tumor.

H. Yamazaki, S. Kosugi, H. Sakata, 2007, Internal medicine.

Intraoperative endoscopic sphincterotomy during laparoscopic cholecystectomy.

S. Osawa, Y. Hata, K. Ogasawara, 1996, Endoscopy.