title: [Physical development of pupils of an elementary school with extended physical education program (longitudinal studies)].
mesh_terms: D000293:Adolescent; D000886:Anthropometry; D002648:Child; D005260:Female; D006128:Growth; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D010806:Physical Education and Training; D011044:Poland; D012737:Sex Factors; D014505:Urban Population
vernacular_title: Rozwój fizyczny uczniów szkoły podstawowej o rozszerzonym programie wychowania fizycznego (badania longitudinalne.