Clinical integration is a technique by which independent physicians and group practices can relate to one another for quality and still bargain collectively over price with managed care plans. Cited by the FTC in virtually every settlement with IPAs and combinations that bargained collusively over fees, the indicia of proper clinical integration have not been well defined. Some settlements and one Advisory Opinion, now almost six years old, have staked out some of the turf, but most of what the government has reviewed, it has always seemed, were activities that have been motivated more by price than quality improvement. The lack of clear guidance has led the American Hospital Association to call on the FTC and DOJ for greater specificity in describing what would qualify as good clinical integration. Now, in their advisory opinion to the Greater Rochester IPA, the FTC has described a program which seems far more to emanate from a quality impetus. Because GRIPA was well integrated clinically for the work it did in connection with HMO products, it had a relatively easier time orienting its activities to the PPO, fee for service, business where the antitrust risks are far greater. The opinion is a useful statement of one modern model of clinical integration.