title: [Study of the effectiveness of an inactivated influenza vaccine in intra nasal administration. II. Observations made during the epidemic of December 1972].
mesh_terms: D005069:Evaluation Studies as Topic; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage*; D007251:Influenza, Human / Q000517:prevention & control*; D012383:Romania; D014611:Vaccination
chemical_list: D007252:Influenza Vaccines
vernacular_title: Studiul eficienţei unui vaccin gripal inactivat administrat pe cale intranasală. II. Observaţii efectuate în cursul epidemiei din decembrie 1972.