[1] Brown Univ, Dept Obstet & Gynecol, Dept Diagnost Imaging, Warren Alpert Med Sch, Providence, RI 02912 USA
[2] Brown Univ, Div Plast & Reconstruct Surg, Warren Alpert Med Sch, Providence, RI 02912 USA
[3] Women & Infants Hosp Rhode Isl, Dept Obstet & Gynecol, Providence, RI USA
[4] Brown Univ, Dept Engn, Providence, RI 02912 USA
[5] Rhode Isl Hosp, Dept Plast Surg, Providence, RI 02903 USA
[6] Hasbro Childrens Hosp, Providence, RI USA
[7] Harvard Med Sch, Mt Auburn Hosp, Cambridge, MA 02138 USA
[8] Univ Calif San Francisco, Dept Radiol, San Francisco, CA USA