A Retained Childhood Toy Mimicking Chronic Bronchial Obstruction in Adulthood: A Case Report. - Takeyama, Ryo; Yamauchi, Yoshikane; Nishida, Tomoki; Saito, Yuichi; Saito, Koji; Sasajima, Yuko; Sakao, Yukinori (Respirology Case Reports, 2026)