[Operative method of gastrectomy with preservation of the pyloric sphincter muscle].
D004381:Duodenal Ulcer / Q000601:surgery*; D005743:Gastrectomy; D006801:Humans; D008722:Methods; D009132:Muscles; D011708:Pylorus; D013274:Stomach Neoplasms / Q000601:surgery*; D013276:Stomach Ulcer / Q000601:surgery*