1. Division of Endocrinology (M.S.K., A.R.-L., B.B., A.H.P., S.H., M.E.G.), Los Angeles, California 90027
2. Children's Hospital Los Angeles, The Saban Research Institute (M.S.K., M.E.G.), Los Angeles, California 90027
3. the University of Southern California (M.S.K., C.J.L., M.E.G.), Los Angeles, California 90027