[1] Eunice Kennedy Shriver Natl Inst Child Hlth & Hum, Program Reprod & Adult Endocrinol, NIH, Bethesda, MD USA
[2] Shady Grove Ctr Preimplantat Genet, Rockville, MD USA
[3] Shady Grove Fertil Reprod Sci Ctr, Rockville, MD USA
[4] Johns Hopkins Univ, Sch Med, Baltimore, MD USA