TY  - RPRT
TI  - Cardiac conduction system: fetal and postnatal development.
AU  - T N James
PY  - 1970
DO  - 10.1016/0002-9149(70)90581-3
UR  - https://pubmed.ncbi.nlm.nih.gov/5460994/
ID  - 5460994
ER  -