Donald E. ThomasDonald E. Thomas, Jr., MD, FACP, FACR (GREENBELT, MD), is in private practice at Arthritis and Pain Associates of Prince Georges County. He is a clinical associate professor at the Uniformed Services University and teaches rheumatology at Waltr Reed National Military Medical Center. He also serves as Chair of the Board of Directors of the Sjögren’s Foundation. Read More Read Less