Breast cancer metastasis to liver and lung is facilitated by Pit-1-CXCL12-CXCR4 axis - Martinez-Ordonez, A; Seoane, S; Cabezas, P; Eiro, N; Sendon-Lago, J; Macia, M; Garcia-Caballero, T; Gonzalez, L O; Sanchez, L; Vizoso, F; Perez-Fernandez, R (Oncogene, 2018)