“Supplementum 228: Joint annual meeting of the Swiss Society of Paediatrics, Swiss Society of Paediatric Surgery and Swiss Society of Child and Adolescent Psychiatry and Psychotherapy (Lausanne, Switzerland, May 24−25, 2018)” (2018) Swiss Medical Weekly, 148(1920), p. Suppl. 228. doi:10.4414/smw.2018.20430.