[1] Mayo Clin, Rochester, MN USA
[2] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA
[3] Magee Womens Surg Associates, Pittsburgh, PA USA
[4] Univ Wisconsin, Madison, WI 53706 USA
[5] Columbia Univ, Med Ctr, New York, NY USA
[6] Univ Texas SW Med Ctr Dallas, Dallas, TX 75390 USA
[7] Carolinas Med Ctr, Charlotte, NC 28203 USA
[8] Univ Washington, Med Ctr, Seattle, WA 98195 USA
[9] Univ N Carolina, Chapel Hill, NC USA
[10] Allegheny Gen Hosp, Pittsburgh, PA 15212 USA
[11] Mayo Clin, Jacksonville, FL 32224 USA
[12] Duke Univ, Med Ctr, Durham, NC USA
[13] Canc Inst New Jersey, New Brunswick, NJ USA