1 Department of Pediatrics (SB Ellen), Drexel University College of Medicine, St Christopher's Hospital for Children, Philadelphia, Pa. Electronic address: sbe25@drexel.edu.
2 Department of Medical Education (L Chandran), University of Miami Miller School of Medicine, Fla. Electronic address: lchandran@med.miami.edu.
3 Department of Pediatrics - Adolescent Medicine (J Louis-Jacques), University of Virginia School of Medicine, Charlottesville. Electronic address: jl6gc@virginia.edu.
4 Department of Pedatrics (MS Ryan), University of Virginia School of Medicine, Charlottesville. Electronic address: michael.ryan@virginia.edu.