Colon transit of every group was observed by colonic transit test Plasma nt concentrations were observed by radioimmunoassy (RIA).
运用结肠运输实验观察各年龄组结肠运输情况,采用放免法测定其餐前后血中nt的浓度。
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Methods: The concentrations of serum laminin and thyroxine were determined by electrochemi luminescence immunoassay and radioimmunoassy in 72 patients with different degree of liver cirrhosis.