Authors: Tom Delbanco; Jan Walker; Sigall K Bell; Jonathan D Darer; Joann G Elmore; Nadine Farag; Henry J Feldman; Roanne Mejilla; Long Ngo; James D Ralston; Stephen E Ross; Neha Trivedi; Elisabeth Vodicka; Suzanne G Leveille Journal: Ann Intern Med Date: 2012-10-02 Impact factor: 25.391