TY  - RPRT
TI  - Chest physiotherapy. Evaluating the effectiveness.
AU  - C Fedorovich
AU  - M T Littleton
DO  - 10.1097/00003465-199003000-00002
UR  - https://pubmed.ncbi.nlm.nih.gov/2328644/
ID  - 2328644
ER  -