n.无血清
Serum free amino acid was measured before and after the treatment. 结果：经碳酸盐透析后，患者血浆大多数游离氨基酸和总氨基酸含量显著降低。
Even in euthyroid subjects with normal serum TSH levels, serum free T4 concentration is independently associated with AF. 即使在有正常促甲状腺激素刺激激素（TSH）水平的正常甲状腺功能受试者，血清游离T4浓度也是与房颤相关的独立因素。
Production of ECCM was obtained from serum free DMEM with or without CyA(0,50,100,300,500,1000 ng/ml). 用无血浆DMEM细胞培养液制备含或不含CyA(0、50、100、300、5001、000 ng/ml)的ECs调节的细胞培养液;
Methods The technique of serum free cultivation and the methods of immunofluorescence cytochemistry were used. 方法 利用无血清培养技术和细胞免疫化学方法。
Een in euthyroid subjects with normal serum TSH leels, serum free T4 concentration is independently associated with AF. 即使在有正常促甲状腺激素刺激激素（TSH）水平的正常甲状腺功能受试者，血清游离T4浓度也是与房颤相关的独立因素。
