Biological tumor markers associated with local control after primary radiotherapy in laryngeal cancer: A systematic review.

In five, high Ki‐67 proliferation index was related to better local control after radiotherapy (two out of five showed a trend, studies with low number of patients), either in univariate or multivariate analysis. 7 , 8 , 9 , 10 , 11 In four, no relation with local control was found. 12 , 13 , 14 , 15 Also, in two other papers an inverse correlation was found, high Ki‐67 expression being

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