[1] George Washington Univ, Sch Publ Hlth & Hlth Serv, Dept Hlth Policy, Washington, DC USA
[2] George Washington Univ, Sch Publ Hlth & Hlth Serv, Hirsh Hlth Law & Policy Program, Washington, DC USA
[3] George Washington Univ, Sch Publ Hlth & Hlth Serv, Dept Hlth Policy, Washington, DC USA