KIE: In this case study, a general practitioner is offered the chance to invest in a free-standing radiology center. His return will be calculated based on the amount of his investment, not on his volume of referrals. The physician is concerned about the legal and ethical aspects of the arrangement . Berenson, a physician, comments that the proposed deal is "wholesome" compared to other kinds of economic practices in health care, and does not involve kickbacks for patient referrals. He concludes that, providing certain safeguards are in place, the physician should have no ethical qualms about investing in the radiology center. Hyman, an attorney and a medical student, comments on the likely effect of such arrangements on physicians' professionalism and on the cost of health care in general, and on the possible conflict between patients' medical needs and physicians' economic interests. He argues against entrepreneurial activities by physicians.