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机译:
Michigan State Univ, Dept Obstet Gynecol & Reprod Biol, 400 Monroe Ave NW, Grand Rapids, MI 49503;
Yonsei Univ, Coll Med, Dept Biochem & Mol Biol, Brain Korea 21 PLUS Project Med Sci, Seoul, South;
Univ N Carolina, Dept Obstet & Gynecol, Chapel Hill, NC 27515 USAWake Forest Baptist Hlth, Dept Obstet & Gynecol, Winston Salem, NC USA;