TY  - RPRT
TI  - Hormone replacement therapy and heart-rate variability.
AU  - C S Hayward
AU  - C M Webb
AU  - P Collins
PY  - 1999
DO  - 10.1016/s0140-6736(05)66330-1
UR  - https://pubmed.ncbi.nlm.nih.gov/10421336/
ID  - 10421336
ER  -