title: [Health status of children from elementary schools with extended teaching programs].
mesh_terms: D000293:Adolescent; D002648:Child; D004493:Education / Q000639:trends; D006262:Health; D006304:Health Status; D006801:Humans; D008403:Mass Screening; D009017:Morbidity; D009146:Music; D011044:Poland; D012572:School Health Services; D013178:Sports Medicine
vernacular_title: Stan zdrowia uczniów szkół podstawowych o poszerzonych programach nauczania.