TY  - RPRT
TI  - Continuous heart rate variability from an implanted device: a practical guide for clinical use.
AU  - Philip B Adamson
DO  - 10.1111/j.1527-5299.2005.04612.x
UR  - https://pubmed.ncbi.nlm.nih.gov/16330909/
ID  - 16330909
ER  -