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. 2013 Apr 29;18(5):5005–5031. doi: 10.3390/molecules18055005

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© 2013 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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“Folate-Tree”—evolution of folate-based PET agents for ¹⁸F-labeling (yellow) and for radiometallation using variable chelators (pink: DF = deferoxamine; green: NODAGA = 1,4,7-triazacyclononane,1-glutaric acid-4,7-acetic acid; blue: DOTA = 1,4,7,10-tetraazacyclododecane-N,N',N'',N'''-tetraacetic acid) suitable for radiolabeling with ^66/68Ga, ⁴⁴Sc or ¹⁵²Tb.