1van der Windt DA,Koes BW,van Aarst M,et al.Practi-cal aspects of conducting a pragmatic randomised trial inprimary care:patient recruitment and outcome assess-ment[].British Journal of General Practice.2000
2Schwartz,D,Lellouch,J.Explanatory and pragmatic attitudes in therapeutic trials[].Journal of Chronic Diseases.1967
3MACRAE KD.Pragmatic versus explanatory trials[].Int J Technol Assess Health Care.1989
4Godwin M,Ruhland L,Casson I,et al.Pragmatic controlled clinical trials in primary care: the struggle between external and internal validity[].BMC Medical Research Methodology.2003
5Tunis,SR,Stryer,DB,Clancy,CM.Practical clinical trials: increasing the value of clinical research for decision making in clinical and health policy[].The Journal of The American Medical Association.2003
6Helms,PJ.‘Real world’ pragmatic clinical trials: what are they and what do they tell us?[].Pediatric Allergy and Immunology.2002
8Witt CM,Jena S,Selim D,et al.Pragmatic randomized trial evaluatingthe clinical and economic effectiveness of acupuncture for chronic lowback pain[].American Journal of Epidemiology.2006
9McMahon,AD.Study control, violators, inclusion criteria and defining explanatory and pragmatic trials[].Statistics in Medicine.2002
10Fransen GA,van Marrewijk CJ,Mujakovic S,et al.Prag-matic trials in primary care.Methodological challenges and solutions demonstrated by the DIAMOND-study.[].BMC Medical Research Methodology.2007
