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. The instruments were discovered during rescue excavations that were carried out between 1998 and 2006, before the construction of a dam that flooded the site. Most of the artifacts, which have been studied over the years, were found within two buildings in a larger complex.