1. Current estimate from the National Health Interview Survey, 1993;Vital Health Stat.,1994
2. Pattern of ambulatory care in pediatrics: The National Ambulatory Medical Care Survey;Cypress;Vital Health Stat.,1984
3. Rhinopharyngites;Manac'h,1981
4. Enquête nationale sur les critères de prescription d'une antibiothérapie dans les rhino-pharyngites en pédiatrie de ville;Cohen;Ann Pédiatr.,1992
5. Epidemiology of viral infections and evaluation of the potential benefit of OM-85 BV on the virologic status of children attending day-care center;Aymard;Respiration.,1994