1. Department of Anesthesiology, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital), Kunming, 650118 Yunnan, China
2. Department of Ultrasound, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital), Kunming, 650118 Yunnan, China
3. Department of Molecular Diagnosis Center, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital), Kunming, 650118 Yunnan, China
4. Department of Operation Room, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital), Yunnan, China