5H. S. Revised and reprinted in A System of Synthetic Phi- losophy[ J]. First Principles, 1904(12) :26 - 34.
6Homer J B, Hirsch G B. System dynamics modeling for public health: background and opportunities [ J ]. Am J Public Health, 2006,96 ( 3 ) :452 - 458.
7Taylor K, Dangerfield B, Le Grand J. Simulation analysis of the consequences of shifting the balance of health care : a system dynamics approach [ J ]. J Health Serv Res Policy, 2005,10 ( 4 ) : 196 - 202.
8Taylor K D B. Modelling the feedback effects of recon igur- ing health services [ J ]. Oper Res Soc,2005 (56) :59 - 75.
9John C, Sommerer E O. A physical system with qualitative- [y uncertain dynamics[J]. Nature,1993,365(9) : 138 - 141.
10Seymour D G. Health care modelling and clinical practice. I'heoretical exercise or practical tool? [ J ]. Health Care Vlanag Sci ,2001,4( 1 ) :7 - 12.