1 American Hospital Dubai, PO Box 5566, Oud Mehta Road, Dubai, United Arab Emirates. Electronic address: mtarabichi@ahdubai.com.
2 Sinus & Oto Centro, Hospital Geral de Fortaleza, Rua Dr. José Furtado, 1480, 60822-300 Fortaleza, Brazil. Electronic address: joaoflavioce@hotmail.com.