“…[ 3 H(G)]Taurocholic acid (2 Ci/mmol), [1,2,6, H(N)] DHEAS (74 Ci/mmol), and [6, H(N)]estrone 3-sulfate (46 Ci/mmol) were purchased from PerkinElmer Life and Analytical Sciences (Boston, MA). All other chemicals and reagents were purchased from Ambion (Austin, TX), Amersham Biosciences (Piscataway, NJ), Bio-Rad (Hercules, CA), Fermentas (Burlington, ON, Canada), Integrated DNA Technologies (Coralville, IA), Invitrogen (Carlsbad, CA), Jackson Immunology Research Laboratory (Bar Harbor, ME), Mallinckrodt Baker (Phillipsburg, NJ), New England Biolab (Beverly, MA), Perkin-Elmer (Foster City, CA), Qiagen (Valencia, CA), Roche (Mannheim, Germany), Sigma-Aldrich (St. Louis, MO), or Stratagene (La Jolla, CA).…”