Establishing the effectiveness of patient decision aids: key constructs and measurement instruments. - Karen R. Sepucha; Cornelia M. Borkhoff; Joanne Lally; Carrie A. Levin; Daniel D. Matlock; Chirk Jenn Ng; Mary E. Ropka; Dawn Stacey; Natalie Joseph-Williams; Celia E. Wills; Richard Thomson (BMC Medical Informatics Decis. Mak., 2013)