TY  - RPRT
TI  - Closed mitral valvotomy.
AU  - K Fraser
AU  - M A Turner
AU  - B A Sugden
PY  - 1976
DO  - 10.1136/bmj.2.6031.352
UR  - https://pubmed.ncbi.nlm.nih.gov/947420/
ID  - 947420
ER  -