title: [School absenteeism by 1st and 3rd grade students in urban primary schools and rural collective schools].
mesh_terms: D000041:Absenteeism; D002648:Child; D002654:Child Care / Q000592:standards*; D006801:Humans; D011044:Poland; D012424:Rural Population; D012574:Schools / Q000592:standards*; D014505:Urban Population
vernacular_title: Absencja szkolna uczniów klas pierwszych i trzecich miejskich szkół podstawowych i gminnych szkół zbiorczych.