Mattheus, H., Wagner, C., Becker, K., Bühren, K., Correll, C., Egberts, K., … von Gontard, A. (2020). Incontinence and constipation in adolescent patients with anorexia nervosa-Results of a multicenter study from a German web-based registry for children and adolescents with anorexia nervosa. The International Journal of Eating Disorders, 53(2), 219-228. https://doi.org/10.1002/eat.23182

Engelhardt, C., Föcker, M., Bühren, K., Dahmen, B., Becker, K., Weber, L., … Hebebrand, J. (2020). Age dependency of body mass index distribution in childhood and adolescent inpatients with anorexia nervosa with a focus on DSM-5 and ICD-11 weight criteria and severity specifiers. European Child & Adolescent Psychiatry. https://doi.org/10.1007/s00787-020-01595-4 (Original work published 2020)