Specific expression of the pS2 gene in subclasses of breast cancers in comparison with expression of the estrogen and progesterone receptors and the oncogene ERBB2 - Rio, M C; Bellocq, J P; Gairard, B; Rasmussen, U B; Krust, A; Koehl, C; Calderoli, H; Schiff, V; Renaud, R; Chambon, P (Proc Natl Acad Sci U S A, 1987)