Systematic reviews of health systems research commonly limit studies for evidence synthesis to randomized controlled trials. However, well-conducted quasi-experimental studies can provide strong evidence for causal inference. With this article, we aim to stimulate and inform discussions on...

At present, there exists no widely agreed upon set of study-design selection criteria for systematic reviews of health systems research, except for those proposed by the Cochrane Collaboration's Effective Practice and Organisation of Care (EPOC) review group (which comprises randomized...

This article discusses the development of Heath Technology Assessment methods and HTA institutions, in regards to meeting the information needs of all levels and fields of health policy-making. On the one hand, HTA needs to expand and develop its methods. Although health products and health care...