“Yes sir.” That was the response of Raymond Scalettar, MD, DSc, FACP, when his commanding officer told him the U.S. Army wanted him to switch specialties—from gastroenterology to rheumatology. There was only one problem. Dr. Scalettar wasn’t exactly sure what that would entail. That was the mid-1950s. Back then, rheumatology was barely out of the womb. Residency…
