Carolina Sundh1, Ola Sunnergren2,3. 1. ENT Clinic, County Hospital Ryhov, 551 85, Jönköping, Sweden. 2. ENT Clinic, County Hospital Ryhov, 551 85, Jönköping, Sweden. ola.sunnergren@rjl.se. 3. Futurum-Academy for Health and Care, Jönköping County Council, Jönköping, Sweden. ola.sunnergren@rjl.se.