Protein Phosphatase 2A Reduces Cigarette Smoke-induced Cathepsin S and Loss of Lung Function - Doherty, DF; Nath, S; Poon, J; Foronjy, RF; Ohlmeyer, M; Debo, AJ; Salathe, M; Birrell, M; Belvisi, M; Baumlin, N; Kim, MD; Weldon, S; et al. (AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE, 2019)