6Morgan R, Williams F, Wright M. An early warning scoring sys- tem for detecting developing critical illness[ J ]. Clin Intens Care, 1997, 8: 100.
7Royal College of Physicians of London. National early warning score (NEWS) : standardising the assessment of acute - illness severity in the NHS. Royal College of Physicians, 2012. https:// www. rcplondon, ac. uk/resources/national - early - warning - score - news.
8Subbe CP, KrugerM, Rutherford P. Validation of a modified early warning score in medical admissions [ J ]. Quarterly J Med, 2001, 94 : 521 - 526.
9Lain TS, Mak PSK, Siu WS, et al. Validation of a modified ear- ly warning score (MEWS) in emergency department observation ward patients[J]. Hong Kong J Emerg Med, 2006, 13 ( 1 ) : 24 - 30.
10Smith G, Prytherch D, Schmidt P, et al. Review and perform- ance evaluation of aggregate weighted "track and trigger" systems [J]. Resuscitation, 2008, 77(2): 170-179.
