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. Author manuscript; available in PMC: 2015 Apr 1.
Published in final edited form as: Depress Anxiety. 2013 Dec 18;31(4):297–307. doi: 10.1002/da.22224

Figure 1.

Figure 1

Pyramid of Biomarker Qualification

Adapted with permission from Figure 2 in Wagner, J. A. (2008) “Strategic approach to fit-for-purpose biomarkers in drug development.” Ann Rev Pharmacol Toxicol 48: 631–651.