TY - JOUR AU - Bornhöft, Gudrun AU - Maxion-Bergemann, Stefanie AU - Wolf, Ursula AU - Kienle, Gunver S. AU - Michalsen, Andreas AU - Vollmar, Horst C. AU - Gilbertson, Simon AU - Matthiessen, Peter F. PY - 2006 DA - 2006/12/11 TI - Checklist for the qualitative evaluation of clinical studies with particular focus on external validity and model validity JO - BMC Medical Research Methodology SP - 56 VL - 6 IS - 1 AB - It is often stated that external validity is not sufficiently considered in the assessment of clinical studies. Although tools for its evaluation have been established, there is a lack of awareness of their significance and application. In this article, a comprehensive checklist is presented addressing these relevant criteria. SN - 1471-2288 UR - https://doi.org/10.1186/1471-2288-6-56 DO - 10.1186/1471-2288-6-56 ID - Bornhöft2006 ER -