SLCO4A1 and neoplasm: Comparison with clinical data of patients showed that SLCO4A1 mRNA level correlated neither with the origin of the tumor cells (either from tumor tissue, n = 8; or ascites; n = 23; or pleural fluid, n = 2) nor with the time of sample collection (at the primary diagnosis, n = 20 or during disease progression and chemotherapy, n = 13), (p = 0.85 and 0.98, respectively).