[Epidemiology of gastroduodenal ulcer].
Lazebnik
L B
LB
Guseĭnzade
M G
MG
Li
I A
IA
Efremov
L I
LI
D002391:Catchment Area, Health; D006801:Humans; D015994:Incidence; D010437:Peptic Ulcer / Q000453:epidemiology* / Q000503:physiopathology; D015995:Prevalence; D012426:Russia / Q000453:epidemiology