de Abajo, F [Safety of meningococcal A and C vaccine. Data from the Spanish drug surveillance system. Meningococcal Vaccine Research Group of the Spanish System of Drug Surveillance]. [electronic resource] - Gaceta sanitaria - 462-7 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0213-9111 Standard No.: 10.1016/s0213-9111(99)71407-x doi Subjects--Topical Terms: AdolescentAdultAge FactorsBacterial Vaccines--adverse effectsChildChild, PreschoolData Interpretation, StatisticalFemaleHumansInfantMaleMeningococcal VaccinesNeisseria meningitidis--immunologyProduct Surveillance, PostmarketingSpain