ANTI-POLIOMYELITIC VACCINATION IN TROPICAL COUNTRIES.
D004770:Enterovirus; D006801:Humans; D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines; D014330:Tropical Medicine; D014611:Vaccination
D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines
ENTEROVIRUS; POLIOVIRUS VACCINE; POLIOVIRUS VACCINE, ORAL; TROPICAL MEDICINE