[Epidemiology of chronic gastritis (methodical aspects)].
D000367:Age Factors; D000368:Aged; D000704:Analysis of Variance; D001706:Biopsy; D005756:Gastritis / Q000453:epidemiology* / Q000473:pathology; D005859:Germany, East; D006801:Humans; D008875:Middle Aged; D011159:Population Surveillance
Zur epidemiologic der chronischen Gastritis (methodische Aspekte.