3Khosravi Shahi P,Del Castillo,Rueda A, et al. Management ofcancer pain[ J] . An Med Interna,2007 ,24(11 ) :554 -557.
4Hutton N,McGee A,Dunbar C. A guide to cancer pain management[J]. Br Community Nurs,2008,13( 10) :464 -470.
5Yates JW, Chalmer B, McKegney FP. Evaluation of patients withadvanced cancer using the Kamofsky performance status [ J ]. Canc-er,1980,45(8) :2220-2224.
6Mor V, Laliberte L, Morris JN,et al. The Kamofsky performancestatus scale. An examination of its reliability and validity in a re-search setting[ J]. Cancer, 1984,53(9) :2002 -2007.