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Quantification of disease activity in patients with ulcerative colitis.

A. Sakamoto, K. Tanaka, T. Yoshida, 1986, Journal of clinical gastroenterology.

The Prognostic Characteristics in Patients with Ulcerative Colitis in Relation to the Onset at Adolescence or Older Group

H. Sakamoto, T. Katsuki, T. Yoshida, 1987 .

Prognosis of Acute Attacks of Ulcerative Colitis

H. Sakamoto, K. Tanaka, T. Yoshida, 1988 .