The Mental Distress of Our Youth in the Context of the COVID-19 Pandemic: A Retrospective Cohort Study of Child and Adolescent Psychiatric Emergency Contacts before and During the COVID-19 Pandemic in the Canton of Zurich from 2019 to 2021. Swiss Med Wkly 2022, 152 (0708), w30142. https://doi.org/10.4414/SMW.2022.w30142.