1. The political polarization of physicians in the United States: An analysis of campaign contributions to federal elections, 1991 through 2012;A Bonica,2014
2. The political alignment of US physicians: An update including campaign contributions to the congressional midterm elections in 2014;A Bonica,2015
3. Political self-characterization of US medical students;E Frank,2007
4. Democratic and Republican physicians provide different care on politicized health issues;ED Hersh;PNAS,2016
5. Public Roles of US Physicians: Community participation, political involvement, and collective advocacy;RL Gruen,2006