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Fig. 4 | BMC Cancer

Fig. 4

From: Non-linear transformations of age at diagnosis, tumor size, and number of positive lymph nodes in prediction of clinical outcome in breast cancer

Fig. 4

Histograms showing the distributions of the prognostic indices (PI) corresponding to the final MFP model in the derivation set and the validation set. The indices for both sets have been centered by subtracting the mean PI in the derivation set. The vertical lines represent the 16th, 50th, and 84th percentiles of the PI-distribution in the derivation set – cut-offs which identify groups of different relative sizes in the validation set

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BMC Cancer

ISSN: 1471-2407

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