Department of Operation;
Dongguan People's Hospital;
Dongguan 523059;
Guangdong;
China;
Department of Operation;
Dongguan People's Hospital;
Dongguan 523059;
Guangdong;
China;
Department of Operation;
Dongguan People's Hospital;
Dongguan 523059;
Guangdong;
China;
Department of Anesthesiology;
Dongguan People's Hospital;
Dongguan 523059;
Guangdong;
China;