Move the video slider left and right to see how
oxygen levels affect vessel growth time (days):

Source:
Hutton DL, Logsdon EA, Moore EM, Gabhann FM, Gimble JM, Grayson WL. Vascular morphogenesis of adipose-derived stem cells is mediated by heterotypic cell-cell interactions. Tissue Engineering Part A. 2012; 18:1729-1740.