TY  - RPRT
TI  - Multiple-component heart rate responses conditioned under paced respiration.
AU  - M W Headrick
AU  - F K Graham
PY  - 1969
DO  - 10.1037/h0026975
UR  - https://pubmed.ncbi.nlm.nih.gov/5786995/
ID  - 5786995
ER  -