Table 2.

The 4 algorithms used in the study.

Analysis method	PCR values	Stability values	Type of analysis
The ΔCt comparative method	Ct	StdDev mean	Intergene
GeNorm	R	M, NF	Intergene One HKG → all other HKGs Stable HKGs: lowest variability: low M
BestKeeper	Ct	SD, r	Intra- and intergene Pairwise correlation analysis → BestKeeper index Stable HKGs: low SD and high r
NormFinder	R	ρ	Intra- and intergene; stable HKGs: least intra- and intergroup variations