Optimizing Venous Drainage Using an Ultrasonic Flow Probe on the Venous LineJoshua L. Walker, Haven A. Young, D. Scott Lawson, S. Adil Husain and John H. CalhoonJ Extra Corpor Technol, 43 3 (2011) 157-161DOI: https://doi.org/10.1051/ject/201143157