Kodner K
Hospitals. 1982 Nov 16;56(22):59-60, 62-6.
Preferred provider organizations, or PPOs, are emerging in areas where competition is forcing providers to make trade-offs to keep their markets and their patients. The origins and likely future development of established PPOs can inform providers looking to initiate or join a PPO.
优选医疗机构（PPO）正在竞争激烈的地区崭露头角，这种竞争迫使医疗机构做出权衡，以保住其市场和患者。现有PPO的起源及可能的未来发展可为有意创立或加入PPO的医疗机构提供参考。
