TY  - RPRT
TI  - Electrocardiography in mitral valvular disease.
AU  - H R FRASER
AU  - R TURNER
PY  - 1955
DO  - 10.1136/hrt.17.4.459
UR  - https://pubmed.ncbi.nlm.nih.gov/13269607/
ID  - 13269607
ER  -