A Predicted FEV1/FVC Model Based on a Simple Respiratory Questionnaire for Early Diagnosis of COPD in Shimane Cohort, Japan. - Nakao M; Okimoto T; Tanino A; Amano Y; Hotta T; Hamaguchi M; Hamaguchi S; Tsubata Y; Kawamura T; Isobe T (International journal of chronic obstructive pulmonary disease, 2026)