Nathan Wiederhold, PharmD, is Professor in the Department of Pathology and Laboratory Medicine at the University of Texas Health Science Center at San Antonio. He serves as the Director of the Fungus Testing Laboratory, an academic reference mycology laboratory for clinical diagnostic testing, including antifungal susceptibility testing, fungal species identification, and antifungal therapeutic drug monitoring. He also serves as an Associate Editor for the Journal of Antimicrobial Chemotherapy and is on the editorial boards for Antimicrobial Agents and Chemotherapy and the Journal of Clinical Microbiology.