Table 1.

List of primers for PCR amplification of drug resistance genes.

Gene	F (5′–3′)	R (5′–3′)
ABCG1	CTACCACAACCCAGCAGATT	AGGTCTCTCTTGTGGTCTGA
ABCC6	CCCAGGCTGATTGGATCATAG	GGTTCTGTTTCTCCTTCTCCTC
ABCB1	GGTGAGTCAGGAACCTGTATTG	AGTCATAGGCATTGGCTTCC