[1] W Virginia Univ, Hlth Sci Ctr, Dept Behav Med & Psychiat, Morgantown, WV 26506 USA
[2] W Virginia Univ, Hlth Sci Ctr, Dept Neurobiol & Anat, Morgantown, WV 26506 USA
[3] Uniformed Serv Univ Hlth Sci, Dept Psychiat, Bethesda, MD 20814 USA
[4] Stanford Univ, Sch Med, Dept Gynecol & Obstet, Div Reprod Biol, Stanford, CA 94305 USA