Correspondence re: G. Tallini et al., RET/PTC oncogene activation defines a subset of papillary thyroid carcinomas lacking evidence of progression to poorly differentiated or undifferentiated tumor phenotype. Clin. Cancer Res., 4:287-294, 1998. Clinical cancer research : an official journal of the American Association for Cancer Research 5: 3724-5, 1999. [Letter] |
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