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| PR:Q9NSA1 | fibroblast growth factor 21 (human) | | |  | | |
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| PR:000047402 | fibroblast growth factor 21, signal peptide removed form (human) | | |  | | |
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| PR:Q9JJN1 | fibroblast growth factor 21 (mouse) | | |  | | |
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| PR:000019884 | fibroblast growth factor 21, signal peptide removed form | | |  | | |
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| PR:000047402 | fibroblast growth factor 21, signal peptide removed form (human) | | |  | | |