Ann Intern Med. 1994 Nov 1;121(9):714-6. doi: 10.7326/0003-4819-121-9-199411010-00014.
This position paper by the American College of Physicians Task Force on Physician Supply examines expanded roles for physician assistants and nurse practitioners in light of projected shortages of primary health care providers. Meta-analyses and other literature reviews comparing the care provided by nurse practitioners and physician assistants with that by primary care physicians had methodologic shortcomings that made the data difficult to interpret. There were no studies comparing nurse practitioners in independent practice with physicians. Seven policy positions are articulated.
美国医师学院医师供应特别工作组的这份立场文件，鉴于预计的初级卫生保健提供者短缺情况，探讨了医师助理和执业护士的扩展角色。将执业护士和医师助理提供的护理与初级保健医生提供的护理进行比较的荟萃分析和其他文献综述存在方法学缺陷，导致数据难以解读。没有研究将独立执业的执业护士与医生进行比较。文中阐述了七个政策立场。
