title: Defining ductal tissue.
authors.affiliation: Department of Cardiac Surgery, Section of Pediatric Cardiovascular Surgery, University of Michigan, Ann Arbor, Mich. Electronic address: mingsing@umich.edu.
authors.forename: Ming-Sing
authors.initials: MS
authors.lastname: Si
mesh_terms: D001943:Breast Neoplasms; D006801:Humans; D007150:Immunohistochemistry