The Patriots hold training camp and practices just outside of Gillette Stadium in Foxborough, with twin practice fields available for team use.

Prior to 2003, the Patriots held training camp and practice at numerous locations. From 1976 to 2002, the team held training camp at Bryant College in Smithfield, Rhode Island. From 1960 to 1961, then from 1969 to 1975, the Patriots held training camp at University of Massachusetts Amherst. Between 1962 and 1968, the Patriots held training camp at Phillips Academy in Andover, Massachusetts.

From 1971 until 2001, the Patriots would simply practice at Foxboro Stadium whenever the field was available, otherwise they would use the public football fields that were available in Foxborough.
Extract from this passage the the locations where the Patriots have held training camp and separate the answers with commas.
Outside Gillette Stadium, Bryant College, University of Massachusetts Amherst, Philips Academy, Foxboro Stadium, the public football fields available in Foxborough