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![NATtrol GBS Positive Control Microorganism [6 X 0.5 mL]](/web/image/product.product/4257/image_1024/%5B0002-NATSAG-6MC-IVD%5D%20NATtrol%20GBS%20Positive%20Control%20Microorganism%20%5B6%20X%200.5%20mL%5D?unique=67e0bf3)