[Physical and mental development of rural children aged 6 to 7].
D000367:Age Factors; D001827:Body Height; D001835:Body Weight; D002648:Child; D002657:Child Development; D006128:Growth; D006801:Humans; D008607:Intellectual Disability / Q000453:epidemiology; D011044:Poland; D012424:Rural Population
Rozwój fizyczny i poziom rozwoju umysłowego dzieci wiejskich w wieku 6 i 7 lat.