Simultaneous venous-arterial Doppler during preload augmentation: illustrating the Doppler Starling curve. - Kenny JS; Gibbs SO; Eibl JK; Eibl AM; Yang Z; Johnston D; Munding CE; Elfarnawany M; Lau VC; Kemp BO; Nalla B; Atoui R (The ultrasound journal, 2023)