Vitamin K deficiency in infancy in Japan.
D002543:Cerebral Hemorrhage / Q000209:etiology; D005260:Female; D006470:Hemorrhage / Q000209:etiology; D006801:Humans; D007231:Infant, Newborn; D007564:Japan; D008297:Male; D014813:Vitamin K Deficiency / Q000150:complications / Q000453:epidemiology*