运用系统理论、文献回顾法、深层访谈法等，跟踪调研某区域23所医院临床学科发展，分析医院各类资源的相互关系和作用机制。
The author used system theory , literature review and interview , to trace the development of clinic subject in 23 hospitals in some region , and analyzed the relation and active mechanism between varieties of resources in hospital .
深层访谈法