Nusdwinuringtyas N, Widjanantie SC. Expiration Training Maneuver for Chronic Obstructive Pulmonary Disease with Congestive Heart Failure Grade II: A Case Report. IndoJPMR [Internet]. 2019Jun.1 [cited 2026Jan.12];7(01):28 -35. Available from: https://indojournalpmr.org/IndoJPMR/article/view/131