Progress in the control of poliomyelitis, measles and infectious hepatitis.
D003141:Communicable Diseases; D006505:Hepatitis; D006506:Hepatitis A; D006801:Humans; D008457:Measles; D009657:North Carolina; D011051:Poliomyelitis; D014765:Viral Vaccines
D014765:Viral Vaccines
HEPATITIS, INFECTIOUS; MEASLES; POLIOMYELITIS