[1] Drexel Univ, Dept Surg, Coll Med, Philadelphia, PA 19107 USA
[2] NE Georgia Surg Associates, Gainesville, GA USA
[3] Univ So Calif, Los Angeles, CA USA
[4] Clin Sagrada Familia, Dept Surg, Barcelona, Spain
[5] Wiregrass Surg Associates, Dothan, AL USA
[6] Surg Care Associates, Cherry Hill, NJ USA
[7] NE Georgia Med Ctr, Gainesville, GA USA
[8] Fox Chase Canc CenterDothan, Philadelphia, PA USA
[9] Trinity Mother Frances Clin Surg, Tyler, TX USA
[10] Univ Nice Sophia Antipolis, Nice, France
[11] Queen Valley Med Ctr, Napa, CA USA
[12] Columbia Univ, Med Ctr, New York, NY USA