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![Recombinant Human SP-B/Surfactant Protein B Protein [H00006439-P01] - 12.5% SDS-PAGE Stained with Coomassie Blue.](http://images.novusbio.com/fullsize/qc_test-H00006439-P01-1.jpg "Recombinant Human SP-B/Surfactant Protein B Protein [H00006439-P01] - 12.5% SDS-PAGE Stained with Coomassie Blue.")