Dr Walker is a diplomate of the American Board of Clinical Chemistry in toxicological chemistry and a fellow of the National Academy of Clinical Biochemistry. She has an undergraduate degree in medical technology from Minnesota State University, Mankato, and a doctorate in pharmacy from the University of Minnesota, Minneapolis, where she also completed a postdoctoral fellowship in pharmacokinetics.

Dr Collins is a fellow of the American Board of Forensic Toxicology and holds certification as a high-complexity laboratory director (HCLD) from the American Board of Bioanalysis. She earned her PhD from Northwestern University and a Public Health Certificate in Core Concepts (PHCert-CC) from the University of Minnesota. She is currently a laboratory director at MedTox Laboratories, a member of the Labcorp Specialty Testing Group. She joined MedTox in 1994.

Dr Ketha graduated from the University of Delhi, India in 2000. She received her master in science with an emphasis in organic chemistry in 2005 from University of Delhi and completed her PhD in pharmaceutical chemistry from University of Florida in Gainesville in 2010. As a part of post-doctoral training, Dr Ketha completed three years of clinical laboratory research and two years of clinical chemistry fellowship from the Mayo Clinic in Rochester, Minnesota in 2015.

Mr Janis earned undergraduate degrees in biochemistry and chemistry at Virginia Tech and an MS in toxicology at University of North Carolina. He has 2 decades of experience developing techniques for the analysis of pharmaceuticals and drugs of abuse. Current interests include high-throughput mass spectrometry screening techniques, as well as the identification and analysis of new and emerging drugs of abuse. He is a member of the American Society for Mass Spectrometry and the Society for Forensic Toxicologists.

Publications