TY - RPRT TI - Plasma Metabolomic Profiling of COPD Patients Stratified by Smoking Status: A GC-MS- Based Approach AU - Singh, R. AU - Ghosh, S. AU - Mandal, A. K. PY - 2026 DO - 10.64898/2026.08.12.744361 UR - https://www.biorxiv.org/content/10.64898/2026.08.12.744361v1 ID - 10.64898/2026.08.12.744361 ER -