TY  - RPRT
TI  - Pressure half-time does not always predict mitral valve area correctly.
AU  - D Loyd
AU  - P Ask
AU  - B Wranne
DO  - 10.1016/s0894-7317(88)80005-1
UR  - https://pubmed.ncbi.nlm.nih.gov/3272781/
ID  - 3272781
ER  -