Han, De-Min [Central issues in the development of laryngology]. [electronic resource] - Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery Feb 2009 - 89-90 p. digital Publication Type: Editorial ISSN: 1673-0860 Subjects--Topical Terms: HumansSleep Apnea Syndromes