Physiological Research Group of Ministry of Railway;
PRC;
High Altitude Medical Research Institute;
Xining 810012;
Qinghai Province;
China;
12^th Hospital of Qinghai-Tibetan Railroad Construction Company;
Golmud 816000;
Qinghai Province;
China;
20^th Hospital of Qinghi-Tibetan Railroad Construction Company;
Golmud 816000;
Qinghai Province;
China;
Public Health Bureau of Qinghai-Tibetan Railroad Construction Company;
Golmud 816000;
Qinghai Province;
China;
China Railroad Construction Company;
Beijing 100844;
China;
Ministry of Railway;
Beijing 100844;
China;