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. Author manuscript; available in PMC: 2015 Jul 27.
Published in final edited form as: Urol Oncol. 2015 Jan 24;33(3):143–148. doi: 10.1016/j.urolonc.2014.12.013

Figure 1.

Figure 1

The Lan-Demets analog of the O’Brien-Fleming Sequential Boundary for Testing the Superiority of a New Therapy vs. a Standard Therapy (one-sided type I error rate =0.02)