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![NATtrol BV Positive Control [6 x 0.15 mL]](/web/image/product.product/4175/image_1024/%5B0002-NATBVPOS-BD%5D%20NATtrol%20BV%20Positive%20Control%20%5B6%20x%200.15%20mL%5D?unique=67e0bf3)