text:  HSCs that were incubated 16 h in HBSS+ 10% FBS+P/SCASIN 5 M at 3% O2. d Pie chart showing genomic annotations
  of the total 34,019 H4K16ac peaks in young, aged HSCs, and aged+CASIN 5 M HSCs. ChIP-seq data are available at GEO Series accession number
  GSE120232. e V