Recognizing difficult trade-offs: values and treatment preferences for end-of-life care in a multi-site survey of adult patients in family practices. - Michelle Howard; Nick Bansback; Amy Tan; Doug Klein; Carrie Bernard; Doris Barwich; Peter Dodek; Aman Nijjar; Daren K. Heyland (BMC Medical Informatics Decis. Mak., 2017)