[Classification of peptic ulcer].
Belousov
A S
AS
Rakitskaia
L G
LG
Mamedova
L D
LD
D006801:Humans; D010437:Peptic Ulcer / Q000145:classification* / Q000150:complications / Q000209:etiology; D014586:USSR
O klassifikatsii iazvennoĭ bolezni.