TY  - RPRT
TI  - Spontaneous variability in arrhythmia frequency.
AU  - E L Michelson
AU  - J Morganroth
PY  - 1979
DO  - 10.1016/0002-8703(79)90023-1
UR  - https://pubmed.ncbi.nlm.nih.gov/433760/
ID  - 433760
ER  -