<qa>  What will be removed in the OR?In addition, small samples of the tissue approximately .25 cm x .25cm for each of the 12 subjects will be shipped to Quantomix, where the samples will be viewed under electron microscopy. There will be no additional tissue removed in the OR for this, and there will be no added risk to the subjects. Quantomix will not receive any identifying information on the samples; therefore there will be no breach of confidentiality. 