Tonsillectomy and the risk of poliomyelitis.
D001699:Biometry; D011051:Poliomyelitis / Q000706:statistics & numerical data*; D012306:Risk; D014068:Tonsillectomy
POLIOMYELITIS/statistics; TONSILLECTOMY
Am J Public Health Nations Health. 1941 Aug;31(8):777-90
18015472