[Epidemiology of gastrointestinal hemorrhage].
Saigenji
K
K
Tanabe
S
S
Igarashi
M
M
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008875:Middle Aged