TY  - RPRT
TI  - Persistent decrease in heart rate after smoking cessation: a 1-year follow-up study.
AU  - A M Persico
PY  - 1992
DO  - 10.1007/bf02245425
UR  - https://pubmed.ncbi.nlm.nih.gov/1570388/
ID  - 1570388
ER  -