[Diarrhea in infants up to 2 years of age--1987].
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D000367:Age Factors; D003968:Diarrhea, Infantile / Q000453:epidemiology*; D006801:Humans; D007223:Infant; D011044:Poland; D012621:Seasons
Biegunki u dzieci do lat 2--1987 rok.