Scherrer Jeffrey F, Pace Wilson D
Department of Family and Community Medicine, Saint Louis University School of Medicine, St. Louis, MO, USA.
Department of Family Medicine, DARTNet Institute, University of Colorado School of Medicine, Aurora, CO, USA.
Fam Pract. 2017 Sep 1;34(5):505-507. doi: 10.1093/fampra/cmx055.