Percentage of 2-cell-like cells in cultures treated with increasing concentrations of sodium acetate, sodium L-lactate or D-ribose. Shown are the mean ± s.d. of 2 independent cell cultures, performed across 3 biological replicates. Boxes indicate the range between the first and third quantile, the band depicts the median and the whiskers extend no further than 1.5-times the interquartile range. 