1. William F. Connell School of Nursing, Boston College, Chestnut Hill, Massachusetts, USA
2. School of Public Health, Boston University, Boston, Massachusetts, USA
3. Department of Public Health, Wayne State University, Detroit, Michigan, USA
4. School of Public Health, University of Michigan, Ann Arbor, Michigan, USA
5. Department of Educational Psychology, University of Texas at Austin, Austin, Texas, USA
6. Department of Health Policy and Management, Fielding School of Public Health, University of California at Los Angeles, Los Angeles, California, USA