| http://www.w3.org/ns/prov#value | - In this case the control surface is harvested some time prior, such as from 1 second to 5 or 6 weeks or possibly even longer to the application of the test product and/or comparison product to the epithelial tissue, which is then harvested to collect the test sample.Method for Evaluating Quantitative ChangesThe first aspect of the present invention is a method for evaluating quantitative changes o
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