c("cell type: cord blood mononuclear cells", "developmental stage: 18-22 weeks of gestation", "karyotype: 47,XX,+21 and 47,XY,+21", "sample type: pool of 3 samples")
c("cell type: cord blood mononuclear cells", "developmental stage: 18-22 weeks of gestation", "karyotype: 46,XX and 46,XY", "sample type: pool of 3 samples")