ACTH‐producing thymic neuroendocrine tumor initially presenting as psychosis: A case report and literature review. - Okumura, Taiki; Takayama, Shohei; Nishio, Shin‐ichi; Miyakoshi, Takahiro; Noguchi, Takuro; Kobayashi, Takashi; Fukushima, Toshirou; Sekiguchi, Nodoka; Otsuki, Toshiaki; Komatsu, Mitsuhisa; Koizumi, Tomonobu (Thoracic Cancer, 2019)