3.1.11.2 A-549 cell - 751965 3.1.11.2 commercial preparation - 713739, 714546, 714547, 714548, 714727, 729447, 730213, 749571 3.1.11.2 commercial preparation USB Corporation Cleveland, Ohio 653396 3.1.11.2 HeLa cell - 751965 3.1.11.2 serum - 749571, 752287