APA

Lou Z., Lou Z., . (20180828). The level and extent of upper airway obstruction affects the severity of laryngopharyngeal reflux. : European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery.

Chicago

Lou Zhengcai, Lou Zi-Han, . 20180828. The level and extent of upper airway obstruction affects the severity of laryngopharyngeal reflux. : European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery.

Harvard

Lou Z., Lou Z., . (20180828). The level and extent of upper airway obstruction affects the severity of laryngopharyngeal reflux. : European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery.

MLA

Lou Zhengcai, Lou Zi-Han, . The level and extent of upper airway obstruction affects the severity of laryngopharyngeal reflux. : European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery. 20180828.