Development of the dipeptidyl peptidase 4 family and its association with lung diseases: a narrative review - Hua, Ershi; Xu, Dongmei; Chen, Huamao; Zhang, Shuwen; Feng, Jian; Xu, Liqin (Journal of Thoracic Disease; Vol 15, No 12 (December 30, 2023): Journal of Thoracic Disease, 2023)