[Again on the problem "4 Year Morbidity in the German Democratic Republic" and "Influenza and Common Cold from the Viewpoint of Social Hygiene and Medical Statistics"].
D001699:Biometry; D003139:Common Cold / Q000706:statistics & numerical data*; D005859:Germany, East; D006801:Humans; D006920:Hygiene; D007251:Influenza, Human / Q000706:statistics & numerical data*; D009017:Morbidity
COMMON COLD/statistics; INFLUENZA/statistics