摘要
<正>世界卫生组织World Health Organization,WHO加强监护病房intensive care unit,ICU磁共振成像magnetic resonance imaging,MRI计算机体层摄影computed tomography,CT正电子发射计算机体层摄影positron emission tomography CT,PET-CT自然杀伤细胞natural killer cell,NK细胞人类免疫缺陷病毒human immunodeficiency virus,HIV信使核糖核酸messenger RNA,mRNA无特定病原体specific pathogen free,SPF