@article{fcaa42c8dc96444e811ef0a22358471c,
title = "Harmonic imaging: Echocardiographic enhanced contrast intensity and duration",
author = "Allen, {M. R.} and Pellikka, {P. A.} and Villarraga, {H. R.} and Klarich, {K. W.} and Foley, {D. A.} and Mulvagh, {S. L.} and Seward, {J. B.}",
year = "1999",
doi = "10.1023/A:1006140102056",
language = "English",
volume = "15",
pages = "215--220",
journal = "International Journal of Cardiac Imaging",
issn = "0167-9899",
publisher = "Springer Netherlands",
number = "3",
}