Clarifying values: an updated review. - Angela Fagerlin; Michael Pignone; Purva Abhyankar; Nananda F. Col; Deb Feldman-Stewart; Teresa Gavaruzzi; Jennifer Kryworuchko; Carrie A. Levin; Arwen H. Pieterse; Valerie Reyna; Anne M. Stiggelbout; Laura D. Scherer; et al. (BMC Medical Informatics Decis. Mak., 2013)