[The increased poliomyelitis incidence in the higher age-groups and its causes].
D001699:Biometry; D015994:Incidence; D011051:Poliomyelitis / Q000453:epidemiology* / Q000706:statistics & numerical data*
POLIOMYELITIS/epidemiology and statistics
Den i högre åldrar ökade poliomyelitmorbiditeten och dess orsaker.