Before revision:  We computed the amplitude-period co-variation of ten benchmark biomolecular oscillators as their parameters were individually varied around a nominal value, cataloguing instances where an increasein period is accompanied by an increase or decrease in amplitude as well as more complex co-variations.
After revision:  We computed the amplitude-period co-variation of eleven benchmark biomolecular oscillators as their parameters were individually varied around a nominal value, cataloguing instances where an increasein period is accompanied by an increase or decrease in amplitude as well as more complex co-variations.