A Study of YZJ-4729 Tartrate Injection for the Treatment of Pain After Abdominal Surgery

Cangzhou Central Hospital, Cangzhou

Cangzhou People's Hospital, Cangzhou

Changde First People's Hospital, Changde

Changsha Hospital Affiliated to Hunan University, Changsha

The Fourth Hospital OF Changsha, Changsha

The Third Xiangya Hospital of Central South University, Changsha

Sichuan Provincial People's Hospital, Chengdu

The Second People's Hospital of Chengdu, Chengdu

The Third People's Hospital of Chengdu, Chengdu

The First Affiliated Hospital of Chongqing Medical University, Chongqing

The Second Affiliated Hospital of Chongqing Medical University, Chongqing

The First Hospital of Jilin University, Ch’ang-ch’un

Affiliated Zhongshan Hospital of Dalian University, Dalian

Deyang People's Hospital, Deyang

Dongguan People's Hospital, Dongguan

Ganzhou People's Hospital, Ganzhou

The First People's Hospital of Guangyuan, Guangyuan

Guangdong Province Traditional Chinese Medical Hospital, Guangzhou

Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou

The First Affiliated Hospital of Jinan University, Guangzhou

Haikou People's Hospital, Haikou

The Fourth Affiliated Hospital of Harbin Medical University, Ha’erbin

The Second People's Hospital of Hefei, Hefei

The First Affiliated Hospital of University of South China, Hengyang

Huzhou Central Hospital, Huzhou

The First Hospital of Jiaxing, Jiaxing

Liuzhou People's Hospital, Liuzhou

Liuzhou Workers' Hospital, Liuzhou

Luoyang Central Hospital, Luoyang

Ma'anshan People's Hospital, Ma’anshan

Mianyang Central Hospital, Mianyang

JiangXi Provincial People's Hospital, Nanchang

The Second Nanning People's Hospital, Nanning

The Second People's Hospital of Neijiang, Neijiang

Ningbo Medical Center Lihuili Hospital, Ningbo

Qingdao Central Hospital of Rehabilitation University, Qingdao

Shanghai First Maternity and Infant Hospital, Shanghai

Shanghai Fourth People's Hospital, Shanghai

Taizhou People's Hospital, Taizhou

The Second Hospital of Tianjin Medical University, Tianjin

Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan

Wuhan Third Hospital, Wuhan

Affiliated Hospital of Jiangnan University, Wuxi

The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an

Zhongshan Hospital Xiamen University, Xiamen

The Second People's Hospital of Yibin, Yibin

Zhangzhou Municipal of Fujian Province, Zhangzhou

Henan Provincial People's Hospital, Zhengzhou

Zhuzhou Central Hospital, Zhuzhou