1 .石汉平,凌文华,李薇.肿瘤营养学.北京:人民卫生出版社, 2012 .Lee RC , Feinbaum RL , Ambros V . The C . elegans heterochronic gene lin-4 encodes small RNAs with antisense complementarity to lin-14 .Reduced expression of the let-7 microRNAs in human lung cancers in association wi ......