Factors associated with long-term hypnotics use in depression. - Nygren, Adam; Karlsson, Pär; Tiger, Mikael; Brenner, Philip; Gembert, Karin; Zhang, Zhiheng; Qu, Ying; Tiihonen, Jari; Taipale, Heidi; Reutfors, Johan (Journal of Affective Disorders, 2026)