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. 2011 Nov 17;6(11):e26646. doi: 10.1371/journal.pone.0026646

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Hotta et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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A. Associations between median survival time and median progression-free survival time (r ² = 0.2563). B. Associations between median survival time and survival post-progression (r ² = 0.8917). All analyses were weighted by trial size.