TY  - RPRT
TI  - Learning effect of repeated hypercapneic ventilatory response testing.
AU  - K R Cooper
AU  - B A Phillips
PY  - 1986
DO  - 10.1097/00000441-198606000-00003
UR  - https://pubmed.ncbi.nlm.nih.gov/3087167/
ID  - 3087167
ER  -