c("cell type: tumor cells", "library: 4sU RNA")
c("cell type: tumor cells", "library: 4sU RNA")
c("cell type: tumor cells", "library: polyA RNA")
c("cell type: tumor cells", "library: polyA RNA")
c("cell type: tumor cells", "library: nucleus RNA")
c("cell type: tumor cells", "library: nucleus RNA")
c("cell type: tumor cells", "library: cyto RNA")
c("cell type: tumor cells", "library: cyto RNA")