GREM1 is associated with metastasis and predicts poor prognosis in ER-negative breast cancer patients. - Neckmann, Ulrike; Wolowczyk, Camilla; Hall, Martina; Almaas, Eivind; Ren, Jiang; Zhao, Sen; Johannessen, Bjarne; Skotheim, Rolf I.; Bjørkøy, Geir; Dijke, Peter ten; Holien, Toril (Cell Communication & Signaling, 2019)