[LESSONS LEARNED FROM THE VACCINATION CAMPAIGN WITH ORAL POLIOVIRUS VACCINE].
D002648:Child; D006801:Humans; D011055:Poliovirus Vaccine, Oral; D013030:Spain; D014611:Vaccination
D011055:Poliovirus Vaccine, Oral
CHILD; POLIOVIRUS VACCINE, ORAL; SPAIN; VACCINATION
ENSE NANZAS DEDUCIDAS DE LA CAMPA NA DE VACUNACI'ON ANTIPOLIO POR VIA ORAL.