[1] Texas Tech Univ, Hlth Sci Ctr, Dept Ob Gyn, Amarillo, TX USA
[2] Texas Tech Univ, Hlth Sci Ctr, Womens Hlth Res Inst Amarillo, Amarillo, TX USA
[3] Tulane Univ, Sch Med, Dept Ob Gyn, Interdisciplinary Program Mol & Cellular Biol, New Orleans, LA 70112 USA
[4] Tulane Reg Primate Res Ctr, Covington, LA USA