[1] Massachusetts Eye & Ear Infirm, Ophthalm Plast & Reconstruct Surg Div, Boston, MA 02114 USA
[2] Harvard Univ, Sch Med, Dept Ophthalmol, Boston, MA USA
[3] W Virginia Univ, Dept Ophthalmol, Robert C Byrd Hlth Sci Ctr, Sch Med, Morgantown, WV 26506 USA
[4] St Lukes Roosevelt Hosp, Vasc Birthmark Inst New York, New York, NY USA