Fukushima R, Kitano A, Matsumoto T, Kashima K, Okabe H, Nakamura S, Oshitani N, Obata A, Okawa K, Kobayashi K
Third Department of Internal Medicine, Osaka City University Medical School, Japan.
Gastroenterol Jpn. 1990 Aug;25(4):509. doi: 10.1007/BF02779344.