TY  - RPRT
TI  - Structural relationships between measures based on heart beat intervals: potential for improved risk assessment.
AU  - Alfred P Hallstrom
AU  - Phyllis K Stein
AU  - Raphael Schneider
AU  - Morrison Hodges
AU  - Georg Schmidt
AU  - Kurt Ulm
PY  - 2004
DO  - 10.1109/tbme.2004.828049
UR  - https://pubmed.ncbi.nlm.nih.gov/15311827/
ID  - 15311827
ER  -