TY  - RPRT
TI  - Intermittent severe mitral regurgitation.
AU  - M A McDonnell
AU  - M J Preece
AU  - T J Tsagaris
PY  - 1978
DO  - 10.1378/chest.74.2.130
UR  - https://pubmed.ncbi.nlm.nih.gov/679739/
ID  - 679739
ER  -