TY  - RPRT
TI  - Improved endocardial visualization with second harmonic imaging compared with fundamental two-dimensional echocardiographic imaging.
AU  - R Senior
AU  - P Soman
AU  - R S Khattar
AU  - A Lahiri
PY  - 1999
DO  - 10.1016/s0002-8703(99)70263-2
UR  - https://pubmed.ncbi.nlm.nih.gov/10385781/
ID  - 10385781
ER  -