Poliomyelitis vaccine; a report on field trials in Southern Alameda County in 1954.
D035843:Biomedical Research; D002140:California; D002648:Child; D006801:Humans; D017589:Immunization Programs; D011051:Poliomyelitis / Q000517:prevention & control*; D011336:Probability; D014611:Vaccination; D014612:Vaccines
D014612:Vaccines
POLIOMYELITIS/prevention and control