Excessive unbound cefazolin concentrations in critically ill patients receiving veno-arterial extracorporeal membrane oxygenation (vaECMO): an observational study. - Booke, Hendrik; Frey, Otto R.; Röhr, Anka C.; Chiriac, Ute; Zacharowski, Kai; Holubec, Tomas; Adam, Elisabeth H. (Scientific Reports, 2021)