1. Department of Pathology, Navy Medical Center of People Liberation Army, Naval Medical University, Shanghai 200433, P.R. China
2. Department of Nuclear Radiation Injury Protection and Treatment, Navy Medical Center of People Liberation Army, Naval Medical University, Shanghai 200433, P.R. China
3. Department of Pulmonary and Critical Care Medicine, Baotou Central Hospital, Baotou, Inner Mongolia Autonomous Region 014040, P.R. China
4. Department of Nuclear Medicine, Baotou Tumor Hospital, Baotou, Inner Mongolia Autonomous Region 014030, P.R. China