Secular change in growth of Philadelphia black adolescents.
D000293:Adolescent; D044383:Black People; D001827:Body Height; D001835:Body Weight; D002648:Child; D002657:Child Development; D005260:Female; D006128:Growth; D006801:Humans; D008297:Male; D010414:Pennsylvania; D014505:Urban Population; D001741:Black or African American