[1] Reynolds Army Community Hosp, Dept Oral & Maxillofacial Surg, Ft Sill, OK USA
[2] Univ Texas, Hlth Sci Ctr, Dept Oral & Maxillofacial Surg, Dent Branch, Houston, TX USA
[3] Univ Texas, Hlth Sci Ctr, Div Pediat Plast Surg, Dept Surg,Sch Med, Houston, TX USA
[4] City Univ Hong Kong, Dept Comp Sci, Hong Kong, Hong Kong, Peoples R China
[5] Univ Texas, Hlth Sci Ctr, Dept Pediat, Houston, TX 77225 USA
[6] Univ Texas, Hlth Sci Ctr, Dept Obstet & Gynecol, Houston, TX 77225 USA
[7] Univ Texas, Med Branch, Dept Internal Med, Galveston, TX 77550 USA
[8] Rice Univ, Dept Bioengn, Houston, TX 77251 USA