[1] Univ Calif San Diego, La Jolla, CA 92093 USA
[2] Baylor Res Inst, Dallas, TX USA
[3] Univ Texas Med Branch, Galveston, TX 77555 USA
[4] Brigham & Womens Hosp, Boston, MA 02115 USA
[5] Oklahoma Med Res Fdn, Edmond, OK USA
[6] Duke Univ, Med Ctr, Durham, NC USA
[7] Univ Alabama Birmingham, Birmingham, AL USA
[8] Hosp Sick Children, Toronto, ON M5G 1X8, Canada
[9] US FDA, Silver Spring, MD USA
[10] Univ Calif San Francisco, San Francisco, CA 94143 USA
[11] Univ Calif San Diego, Sch Med, San Diego, CA 92103 USA
[12] Soc Womens Hlth Res, Washington, DC USA
[13] NICHHD, NIH, Bethesda, MD 20892 USA
[14] Cornell Univ, Hosp Special Surg, Weill Med Coll, New York, NY 10021 USA
[15] Cedars Sinai Med Ctr, Los Angeles, CA 90048 USA