Harry J. Lemmens

Validation of stroke volume and cardiac output by electrical interrogation of the brachial artery in normals: assessment of strengths, limitations, and sources of error

Anthony N. DeMaria, Andrew M. Kahn, Isaac C. Henry, 2015, Journal of Clinical Monitoring and Computing.

Patient State Index: Titration of Delivery and Recovery from Propofol, Alfentanil, and Nitrous Oxide Anesthesia

Leslie S. Prichep, Eric T. Pierce, Laverne Gugino, 2002, Anesthesiology.