全身麻醉联合硬膜外麻醉在老年高血压患者腹腔镜胆囊切除术中的作用
전신마취연합경막외마취재노년고혈압환자복강경담낭절제술중적작용
The Role of General Anesthesia combined with Epidural Anesthesia in elderly Patients with Hypertension Implemented by Laparoscopic Cholecystectomy