respiratory syncytial virus disease in infants despite prior administration of antigenic inactivated vaccine. | | 1969 | 4305198 |
infectious disease epidemiology. viruses associated with bronchiolitis and croup during 1969. | | 1970 | 4316804 |
epidemiology of respiratory syncytial virus infection in washington, d.c. 3. composite analysis of eleven consecutive yearly epidemics. | | 1973 | 4355632 |