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The fundamental building blocks of red human hair pheomelanin are isoquinoline-containing dimers.

Department of Organic Chemistry and Biochemistry, University of Naples Federico II, Via Cintia 4, I-80126 Naples, Italy.
Pigment Cell & Melanoma Research (Impact Factor: 5.64). 08/2011; 25(1):110-2. DOI: 10.1111/j.1755-148X.2011.00896.x
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