1. Department of Medical Oncology, The First Affiliated Hospital of Hainan Medical University , Haikou , Hainan 570102 , P.R. China
2. Department of Clinical Laboratory, The First Affiliated Hospital of Xinjiang Medical University , Urumqi , Xinjiang 830054 , P.R. China
3. Department of Medical Oncology, The First Affiliated Hospital of Hainan Medical University , 31 Longhua Road , Haikou , Hainan 570102 , P.R. China