Nakano, S., Iyama, K.-I., Ogawa, M., Yoshioka, H., Sado Y., Oohashi, T., Ninomiya Y: Differential tissular expression and localization of type IV collagen ƒ¿1(IV), ƒ¿2(IV), ƒ¿5(IV), and ƒ¿6(IV) chains and their mRNA in normal breast and in benign malignant breast tumors. Lab. Invest. 79: 281-292, 1999