Psychiatric comorbidities in hoarding disorder: a structured clinical interview study - Nami Nishida; Keitaro Murayama; Hirofumi Tomiyama; Kenta Kato; Kang Mingi; Kou Matsukuma; Makoto Kawahito; Kana Tsunoda; Takuro Kamio; Ayaka Shuto; Tomohiro Nakao (Frontiers in Psychiatry, 2026)