Nobuhiro Koyanagi

Prediction of variceal hemorrhage by esophageal endoscopy

Kazushige Beppu, Kiyoshi Inokuchi, Nobuhiro Koyanagi et al. · Gastrointestinal Endoscopy · 1981 · 768 citations

Medicine, Clinical Sciences, Internal Medicine +12

Endoscopic classification of gastric varices

Makoto Hashizume, Seigo Kitano, H. Yamaga et al. · Gastrointestinal Endoscopy · 1990 · 191 citations

Medicine, Clinical Sciences, Internal Medicine +12

Prevention of recurrence of esophageal varices after endoscopic injection sclerotherapy with ethanolamine oleate

Seigo Kitano, Nobuhiro Koyanagi, Yasunori Iso et al. · Hepatology · 1987 · 119 citations · Full text

Medicine, Internal Medicine, Surgery +14

Endoscopic injection sclerotherapy for 1,000 patients with esophageal varices: A nine-year prospective study

Makoto Hashizume, Seigo Kitano, Nobuhiro Koyanagi et al. · Hepatology · 1992 · 80 citations · Full text

Medicine, Surgery, Gastroenterology +14

The therapeutic strategies in performing emergency surgery for gastroduodenal ulcer perforation in 130 patients over 70 years of age.

Kouji Tsugawa, Nobuhiro Koyanagi, Makoto Hashizume et al. · PubMed · 2001 · 56 citations

Medicine, Geriatric Medicine, Surgery +17