Hundreds of Roman-era medical instruments now being examined by scientists may come from one of the earliest known examples of a group medical practice, or at least a place where health care workers congregated to treat people. A total of 348 artifacts linked to medicine were found at the site of Allianoi, an ancient town that also hosted a large spa-like bath in what is now Turkey. The vast number of the 1,800-year-old artifacts may indicate the site once featured an ancient medical center