TY  - RPRT
TI  - First degree atrioventricular block.
AU  - S Sornsin
PY  - 1987
DO  - 10.1016/0736-4679(87)90007-2
UR  - https://pubmed.ncbi.nlm.nih.gov/3584915/
ID  - 3584915
ER  -