Kunihiko Ito

N-ras mutation: an independent prognostic factor for aggressiveness of papillary thyroid carcinoma.

E. Kaplan, T. Yashiro, L. Degroot, 1994, Surgery.

Comparison of mutations of ras oncogene in human pancreatic exocrine and endocrine tumors.

E. Kaplan, T. Yashiro, Y. Aiyoshi, 1993, Surgery.