1. Department of Sociology & Criminology Pennsylvania State University University Park Pennsylvania USA
2. Department of Health Policy & Administration Pennsylvania State University University Park Pennsylvania USA
3. Department of Surgery University of Alabama at Birmingham Birmingham Alabama USA
4. Department of Medicine Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania USA
5. Department of Medicine Weill Cornell Medical College Cornell University New York New York USA
6. Unaffiliated researcher Armonk New York USA
7. University Libraries and Department of Sociology Virginia Polytechnic Institute and State University Blacksburg Virginia USA
8. Department of Sociology Birmingham‐Southern College Birmingham Alabama USA