Efficacy of add-on Therapy With Vildagliptin in Chinese Patients With Type 2 Diabetes Inadequately Controlled With Prior Metformin Monotherapy

China-Japan Friendship Hospital, Beijing

General Hospital of Beijing Military Region of PLA, Beijing

Peking Union Medical College Hospital, Beijing

Peking University First Hospital, Beijing

The General Hospital of the PLA, Beijing

The General Hospital of the Second Artilleryman of PLA, Beijing

The Affiliated Union Hospital of Fujian Medical University, Fuzhou

The Fuzhou General Hospital of the PLA Nanjing Military Area, Fuzhou

Guangdong Provincial People's Hospital, Guangzhou

Second Affiliated Hospital of Nanchang University, Nanchang

The Jiangxi Provincial People's Hospital, Nanchang

Te Affiliated Drum Tower of Nanjing University Medical School, Nanjing

Tongji Hospital of Tongji University, Nanjing

Shanghai Changzheng Hospital, Shanghai

The Second Affiliated Hospital of China Medical University, Shenyang

The Second Affiliated Hospital of Tianjin Medical University, Tianjin

First Affiliated Hospital of 4th Military Medical University, Xi'an