| http://www.w3.org/ns/prov#value | - s tool comprising an elongated internal lumen into the breast duct; infusing a fluid into the breast duct through said elongated internal lumen of said introduced ductal access tool; retrieving a sample from within said duct through said elongated internal lumen of said introduced ductal access tool, said sample including at least one hundred ductal epithelial cells; evaluating the ductal epitheli
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