1. Weill Cornell Medical College, New York, New York (S.M.M., J.A.L., P.J.J., B.R.S.)
2. University of Miami Miller School of Medicine, Miami, Florida (K.E.M., X.Y.)
3. New York University School of Medicine, New York, New York (J.D.L., P.N., J.R.)
4. Columbia University Medical Center, New York, New York (E.V.N.)