Launching a virtual decision lab: development and field-testing of a web-based patient decision support research platform. - Aubri S. Hoffman; Hilary A. Llewellyn-Thomas; Anna N. A. Tosteson; Annette M. O'Connor; Robert J. Volk; Ivan M. Tomek; Steven B. Andrews; Stephen J. Bartels (BMC Medical Informatics Decis. Mak., 2014)