@misc{indiciae757b8a795d30,
  title = {A new Doppler-echo method to quantify regurgitant volume.},
  author = {S S Wang and J J Rubenstein and M Goldman and J J Sidd},
  doi = {10.1016/s0894-7317(14)80540-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/1571164/},
  note = {Source identifier: 1571164}
}