TY  - RPRT
TI  - Is there such a thing as normal sinus rate?
AU  - D H Spodick
PY  - 1993
DO  - 10.1136/hrt.70.5.486-a
UR  - https://pubmed.ncbi.nlm.nih.gov/8260287/
ID  - 8260287
ER  -