1Sisakian H, Torgomyan A, Barkhudaryan A. The effect of Irimetazi-dine on left ventricular systolic function and physical tolerance in patients with ischaemic cardiomyopathy [J]. Acta Cardiol, 2007, 62 (5): 493-499.
3Jones J,Hunter D. Consensus methods for medical and health services researeh ~ J~. BMJ ,2010,311 (7001) :376 - 380.
4Moyihan R, Oxman AD, Lavis J, et al. A review of organiazation that support the use of research evidenee in developing guidelines technolo- gy assessments and health poliey, for the WHO Advisory Committee on Healths Research[ R]. Oslo Now egian Centre for the Health Serice, 2010.
5ABurgers JS, Grol R, Klazinga NS, et al. Towards evidence - based clin- ical practice an international survey of 18 clinical practice guideline pro~'ams [J]. Int J Qual Health Care,2013,15( 1 ) :32 -45.
6Green J, Thorogood N. Qualitative methods for healths research thou- sand [ M ]. London : Sage Publication ,2011.
