In contrast , large amounts of the protein were localized to the lumen of normal breast ducts in the vicinity of NGAL -expressing tumors .
in contrast , large amounts of the protein were localized to the lumen of normal breast ducts in the vicinity of ngal -expressing tumors .
O O O O O O O O O O O O B-tissue O B-body_part I-body_part I-body_part O O O O B-protein_molecule O O O