Human breast epithelial cells in serum-free collagen gel primary culture: growth, morphological, and immunocytochemical analysis.
Yang J, Balakrishnan A, Hamamoto S, Elias JJ, Rosenau W, Beattie CW, Das Gupta TK, Wellings SR, Nandi S. J Cell Physiol. 1987 Nov; 133(2):228-34, 254-5.