SLC20A1 and breast cancer: The top five upregulated lncRNAs were long intergenic non-protein coding RNA 1614 (LINC01614), solute carrier family 20 member 1 (SLC20A1), DSCAM antisense RNA 1 (DSCAM-AS1), HOX transcript antisense RNA (HOTAIR) and RUNX1-IT1, of which only RUNX1-IT1 has not been previously characterized in breast cancer.