common mode rejection ratio共模抑制比 standardized mortality ratio标准化死亡率比 cell-mediated reactivity细胞介导反应性 congenital mitral regurgitation先天性二尖瓣回流 cutaneo-muscular reflex皮肤肌肉反射 carbon-13 magnetic resonance spectroscopy碳-13核磁共振光谱学