TY  - RPRT
TI  - Pacemaker refractory periods.
AU  - S S Barold
AU  - J J Gaidula
PY  - 1971
DO  - 10.1056/nejm197101282840423
UR  - https://pubmed.ncbi.nlm.nih.gov/5539197/
ID  - 5539197
ER  -