Gasparini, R.

episode visit netherland productivity otitis media country parent children health spain italy symptom physician study survey otiti belgium media productivity losses table wolleswinkel-van den bosch antibiotic disease france physician-con firmed aom productivity loss questionnaire germany internet / vaccine 28 flander absence resource leisure time 1.00 child emergency visit specialist firmed physician-con otc drugs prescription vaccine unit costs physician visit leisure number proportion region result estimate hospitalisation productivity time disease episode percentage units /user cost cost absence 5 years caregiver population 2.0 statistic disease episodes reference diagnosis travel 4.0 respondent difference source month telephone specialist kingdom 2 years wolleswinkel-van bosch physician-confirmed aom practitioner sample 1.0