[Difficulties in the epidemiologic analysis of a focus of salmonellosis in the Warsaw province].
D000293:Adolescent; D005260:Female; D006801:Humans; D008297:Male; D011044:Poland; D012478:Salmonella Food Poisoning / Q000453:epidemiology*
Trudności epidemiologa w opracowaniu ognisk salmonelloz na terenie województwa warszawskiego.