[1] CHARLES B STOUT NEUROSCI MASS SPECTROMETRY LAB, DEPT NEUROL, MEMPHIS, TN USA
[2] CHARLES B STOUT NEUROSCI MASS SPECTROMETRY LAB, DEPT BIOCHEM, MEMPHIS, TN USA
[3] NW CTR INFERTIL & REPROD ENDOCRINOL, MARGATE, TN USA
[4] RUST COLL, DIV SCI & MATH, HOLLY SPRINGS, MS 38635 USA
[5] VANDERBILT UNIV, MED CTR, DIV REPROD ENDOCRINOL, NASHVILLE, TN 37240 USA
[6] UNIV TENNESSEE, CTR HLTH SCI, DEPT OBSTET & GYNECOL, MEMPHIS, TN 38163 USA
[7] UNIV TENNESSEE, CTR HLTH SCI, DEPT BIOCHEM, MEMPHIS, TN 38163 USA