Mhawech P, Herrmann F, Coassin M, Guillou L, Iselin CE. Motility-related protein 1 (MRP-1/CD9) expression in urothelial bladder carcinoma and its relation to tumor recurrence and progression. Cancer. 2003 Oct 15;98(8):1649–57. doi: 10.1002/cncr.11698. PMID: 14534881.