Nutritional Risk Screening(NRS.2002):a new method based on an analysis of controlled clinical trials .3 .中华医学会肠外肠内营养学分会.临床诊疗指南:肠外肠内营养学分册.北京:人民卫生出版社,2006 .The impact of nutrition support for the patient at nutritional risk on outcome:a multicenter cohort s ......