[1] Harvard Univ, Sch Med, Beth Israel Deaconess Med Ctr, Sect Minimally Invas Surg,Bariatr Program, Boston, MA 02215 USA
[2] Univ Texas SW, Dallas, TX USA
[3] Virginia Commonwealth Univ, Med Coll Virginia, Richmond, VA 23298 USA
[4] Emory Univ, Atlanta, GA 30322 USA
[5] Cedars Sinai Med Ctr, Los Angeles, CA 90048 USA
[6] Univ Virginia, Charlottesville, VA USA