Intraoperative Beat-to-Beat Pulse Transit Time (PTT) Monitoring via Non-Invasive Piezoelectric/Piezocapacitive Peripheral Sensors Can Predict Changes in Invasively Acquired Blood Pressure in High-Risk Surgical Patients. - Michael Nordine; Marius Pille; Jan F. Kraemer; Christian Berger 008; Philipp Brandhorst; Philipp Kaeferstein; Roland Kopetsch; Niels Wessel; Ralf Felix Trauzeddel; Sascha Treskatsch (Sensors, 2023)