Systematic Evaluation of the Upper Airway in a Sample Population: Factors Associated with Obstructive Sleep Apnea Syndrome. - Oliveira MC; Tufik S; Haddad FL; Santos-Silva R; Gregório LC; Bittencourt L (Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 2015)