Dr. McGill is a sought-after expert in liver injury caused by xenobiotics, which are chemicals foreign to the body such as drugs, pesticides, and dietary supplements. He is also a fellowship-trained clinical chemist. In addition to his research and teaching at UAMS, he has held numerous roles within scientific and professional organizations, including Vice President of the South Central chapter of the Society of Toxicology (SOT). He has also received several significant awards, including the prestigious Pinnacle Research Award from the American Association of the Study of Liver Diseases (AASLD) Foundation.