A study of the relationship of the absence of tonsils to the incidence of bulbar poliomyelitis.
D000234:Adenoids; D015994:Incidence; D014066:Palatine Tonsil / Q000601:surgery*; D011051:Poliomyelitis; D011052:Poliomyelitis, Bulbar / Q000453:epidemiology*
POLIOMYELITIS, BULBAR/epidemiology; TONSILS/surgery