The current state of intraoperative echocardiography in North America: results of a survey.
Hillel
Z
Z
Department of Anesthesiology, Mount Sinai Medical Center, New York, NY 10029, USA.
Mikula
S
S
Thys
D
D
D004452:Echocardiography / Q000191:economics; D006801:Humans; D016343:Monitoring, Intraoperative