[1] Childrens Natl Med Hlth Syst, Washington, DC USA
[2] Childrens Natl Hlth Syst, Med Genet Res Ctr, Washington, DC USA
[3] Univ Nacl Colombia, Sch Med, Dept Pediat, Bogota, Colombia
[4] George Washington Univ, Sch Med & Hlth Sci, Div Pediat Otorhinolaryngol, Dept Surg, Washington, DC 20052 USA
[5] George Washington Univ, Sch Med & Hlth Sci, Div Pediat Otorhinolaryngol, Dept Pediat, Washington, DC 20052 USA