TY  - RPRT
TI  - Mitral valvuloplasty: a learning curve.
AU  - M J Antunes
AU  - P R Colsen
AU  - R H Kinsley
PY  - 1983
UR  - https://pubmed.ncbi.nlm.nih.gov/6872198/
ID  - 6872198
ER  -