Yearly and seasonal incidence of mongolism in Quebec.
D001315:Australia; D004314:Down Syndrome / Q000453:epidemiology* / Q000209:etiology; D005260:Female; D006506:Hepatitis A / Q000150:complications; D006801:Humans; D007231:Infant, Newborn; D007558:Italy; D011247:Pregnancy; D011792:Quebec; D012621:Seasons; D006113:United Kingdom; D014481:United States