TY  - RPRT
TI  - Dobutamine challenge for low-gradient aortic stenosis.
AU  - Paul A Grayburn
AU  - Eric J Eichhorn
PY  - 2002
DO  - 10.1161/01.cir.0000025707.19008.0e
UR  - https://pubmed.ncbi.nlm.nih.gov/12176940/
ID  - 12176940
ER  -