Hai Nam, Le, 		Thanh Quang, Vo, 		Tuan Sơn, Nguyen, AND 		Dinh Thi, Dao.
" Clinical Features of Chronic Sinusitis in Adult Patients in the National Otorhinolaryngology Hospital of Vietnam in 2019" <em>VNU Journal of Science: Medical and Pharmaceutical Sciences</em> [Online], Volume 36 Number 2 (24 June 2020)