[Epidemiologic study of mortality from gastric and duodenal ulcer in Spain (1951-1979)].
D000368:Aged; D004381:Duodenal Ulcer / Q000401:mortality*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013030:Spain; D013276:Stomach Ulcer / Q000401:mortality*
Estudio epidemiológico de la mortalidad por úlcera gástrica y duodenal en España (1951-1979).