I spoke with Eric Berkman as he reported the lead story on retail clinics in the current issue of Massachusetts Medical Law Report, as did a number of other authorities on the subject.  Massachusetts recently promulgated "limited service" clinic regulations in order to regulate retail clinics appropriately, after CVS applied for a host of waivers to standard clinic licensure requirements as it prepared to open some Minute Clinics here in the Bay State.  For further info, see more HealthBlawg posts on the retail clinic issue.