Amendola S, Cerutti R, Camuffo M, Arnone CI, Candeloro D, Fuzzi O, Serra M, Vizziello P, Teo AR. Identifying Hikikomori in adolescence: Testing the Hikikomori Questionnaire – 25 and ERRESSEGI optimal cut-offs. PSY [Internet]. 2025 Dec. 30 [cited 2026 Feb. 26];31(3). Available from: https://www.jpsychopathol.it/article/view/1524