TY  - RPRT
TI  - Backrest elevation and pulmonary artery pressures: research analysis.
AU  - C W Lambert
AU  - C L Cason
DO  - 10.1097/00003465-199011000-00003
UR  - https://pubmed.ncbi.nlm.nih.gov/2146100/
ID  - 2146100
ER  -