c("tissue: testis", "age: 16 weeks", "cell type: cKIT+ FACS sort")
c("tissue: testis", "age: 16.5 weeks", "cell type: cKIT+ FACS sort")
c("tissue: ovary", "age: 16 weeks", "cell type: cKIT+ FACS sort")
c("tissue: ovary", "age: 16.5 weeks", "cell type: cKIT+ FACS sort")
c("cell line: H1 hESCs", "passages: 42-45", "cell type: TRA-1-60+ FACS sort")
c("cell line: H1 hESCs", "passages: 42-45", "cell type: TRA-1-60+ FACS sort")