Construction and Validation of A Nomogram to Identify Mucus Obstruction In Patients With Chronic Obstructive Pulmonary Disease0 views•2026•MedicineWeixin Su1, Yan Zhang1, Zhi Yang1, Yanning Zhou1, Bo Gao1, Rui Shi1, Lili Wu1, He Huang1Weixin Su1Yan Zhang1Zhi Yang1Yanning Zhou1Bo Gao1Rui Shi1Lili Wu1He Huang11Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Shenzhen University (Shenzhen Second People's Hospital)Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Shenzhen University (Shenzhen Second People's Hospital)