TY  - RPRT
TI  - Real time electrocardiogram QRS detection using combined adaptive threshold.
AU  - Ivaylo I Christov
PY  - 2004
DO  - 10.1186/1475-925x-3-28
UR  - https://pubmed.ncbi.nlm.nih.gov/15333132/
ID  - 15333132
ER  -