The Epidemiological and Intrinsic Characteristics of Chronic Rhinitis

Conditions: Chronic Rhinitis Interventions: Other: Epidemiological investigation Sponsors: Zheng Liu ENT; Peking Union Medical College; Hainan People ' s Hospital; Shandong Second Provincial General Hospital; First Affiliated Hospital of Chongqing Medical University; First Affiliated Hospital of Xinjiang Medical University Not yet recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials