Dr. Leon Friesen is the General Supervisor responsible for Quality at Gravity Diagnostics. He is certified as a Medical Laboratory Scientist [MLS (ASCP)] with experience in hematology, chemistry, immunology, toxicology, blood banking, and bone marrow transplant specialties. He has 13+ years of experience in clinical diagnostics and biomedical research. His education includes a Ph.D. in Biomedical Science (Purdue University), a M.S. in Biology (Wake Forest University), and baccalaureate degrees in Microbiology and Medical Laboratory Science (Miami University).