authors Schunemann, Holger Tugwell, P Reeves, B Akl, Elie Santesso, N Spencer, F Shea, B Wells, G Helfand, M
keywords 42 Health Sciences 4203 Health Services and Systems 8 Health and social care services research 8.4 Research design and methodologies (health services) Clinical Research Clinical Trials and Supportive Activities Comparative Effectiveness Research Generic health relevance