Skin creases on the sole of the foot as a physical index of maturity: comparison between Caucasian and Negro infants.
D000886:Anthropometry; D044383:Black People; D005260:Female; D005528:Foot; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D008722:Methods; D011247:Pregnancy; D044465:White People