Seasonal variation in incidence of some congenital malformations in two Australian samples.
D001315:Australia; D002971:Cleft Lip / Q000453:epidemiology*; D002972:Cleft Palate / Q000453:epidemiology*; D006618:Hip Dislocation, Congenital / Q000453:epidemiology*; D006801:Humans; D007231:Infant, Newborn; D012621:Seasons