方法16个RB患者成对的肿瘤与其相应血清标本在13号染色体上14个微卫星标记处通过荧光PCR进行扩增，分析测定LOH ；
Methods Paired blood and RB tumor samples from 16 patients were analyzed with fluorescent PCR for LOH at 14 microsatellite marker loci on chromosome 13.
血清afp和CEA值都不呈正太分布，但是都成对数正太分布。
Neither serum AFP nor serum CEA values conformed to a Gaussian distribution. But both of them were log-normally distributed.
血清afp和CEA值都不呈正太分布，但是都成对数正太分布。
Neither value of serum AFP nor CEA conformed to a Gaussian distribution but were rather log-normally distributed both.
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