Prevalence and severity of obstructive sleep apnea syndrome in middle-aged adults after pharyngeal flap surgery: a long-term prospective assessment - Trindade, Inge Elly Kiemle; Campos, Letícia Dominguez; Sampaio-Teixeira, Ana Claudia Martins; Trindade-Suedam, Ivy Kiemle; Lorenzi Filho, Geraldo (International Congress on Cleft Lip/Palate and Related Craniofacial Anomalies, 2013)