1. Otorlaryngology Department, Affiliated Center Hospital of Shenyang Medical College, Shenyang, Liaoning, People’s Republic of China
2. Otorhinolarynology, China Medical University, Shengjing Hospital, Shenyang, Liaoning, People’s Republic of China
3. Otolaryngological Department, Second Affiliated Hospital of Shenyang Medical College, Shenyang, Liaoning, People’s Republic of China
4. Gynecology Department, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, People’s Republic of China
5. Department of Oromaxillofacial–Head and Neck Surgery, School of Stomatology, China Medical University, Shenyang, Liaoning, People’s Republic of China
6. Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Shenyang, Liaoning, People’s Republic of China