Letter to the Editor Regarding Serratus Anterior Plane Block Combined with General Analgesia and Patient-Controlled Serratus Anterior Plane Block in Patients with Breast Cancer: A Randomized Control Trial
1 Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yong-An Road, Xi-Cheng District, Beijing, 100050, People's Republic of China.
2 Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yong-An Road, Xi-Cheng District, Beijing, 100050, People's Republic of China. xuefushan@aliyun.com.