TY  - RPRT
TI  - EndorphIns, i presume--or hyperventilation?
AU  - L C Lum
AU  - P G Nixon
PY  - 1981
DO  - 10.1016/s0140-6736(81)90751-0
UR  - https://pubmed.ncbi.nlm.nih.gov/6109841/
ID  - 6109841
ER  -