[Spontaneous healing rate and recurrence rate of peptic ulcer].
D004381:Duodenal Ulcer / Q000503:physiopathology; D006801:Humans; D010437:Peptic Ulcer / Q000209:etiology / Q000503:physiopathology*; D012008:Recurrence; D013276:Stomach Ulcer / Q000503:physiopathology