91麻豆精品国产综合久久久,人人玩人人添人人澡超碰,五月婷婷六月激情综合,国产一级二级三级久久

Additional Information

NATtrol? Meningitis/Encephalitis (ME) Controls (NATMEC-BIO) are formulated with purified, intact virus particles, bacterial and fungal cells that have been chemically modified to render them non-infectious and refrigerator stable*. Each control pack contains 6 x 0.2 mL vials of ME Control 1 and 6 x 0.2 mL vials of ME Control 2. NATtrolTM ME Controls are supplied in a purified protein matrix that mimics the composition of a true clinical specimen.