Sand, L., Bøe, T., Shafran, R., Stormark, K., & Hysing, M. Perfectionism in Adolescence: Associations With Gender, Age, and Socioeconomic Status in a Norwegian Sample. Frontiers in Public Health, 9, 688811. https://doi.org/10.3389/fpubh.2021.688811 (Original work published 2021)