[Unsolved problems of peptic ulcer].
El'shteĭn
N V
NV
Kheĭnla
Iu Ia
IuIa
Mardna
U B
UB
Lond
E R
ER
D004381:Duodenal Ulcer / Q000453:epidemiology / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D012008:Recurrence; D012621:Seasons; D012737:Sex Factors; D013276:Stomach Ulcer / Q000453:epidemiology / Q000209:etiology*
Nereshennye voprosy iazvennoĭ bolezni.