title: [Changes in health conditions occurring in elementary school children during their 8-year stay as well as their scholastic achievements].
mesh_terms: D000124:Achievement; D002648:Child; D005260:Female; D006305:Health Status Indicators; D006306:Health Surveys; D006801:Humans; D008297:Male; D011044:Poland; D012574:Schools
vernacular_title: Zmiany w stanie zdrowia uczniów w czasie ośmioletniej nauki w szkole podstawowej a wyniki w pracy szkolnej.