Nursing College;
Daqing District of Harbin Medical University;
Daqing 163319;
China;
Nursing College;
Daqing District of Harbin Medical University;
Daqing 163319;
China;
Nursing College;
Daqing District of Harbin Medical University;
Daqing 163319;
China;
Nursing College;
Daqing District of Harbin Medical University;
Daqing 163319;
China;
Nursing College;
Daqing District of Harbin Medical University;
Daqing 163319;
China;