Table 1. Primers used for nested PCR.

Primer	Region	Product size	Nucleotides
Forward:5′CGTGAGGGCATCGAGGTGGC3′	INS	245 bp	631–650
Reverse:5GCGTAGGCGTCGGTGACAAA3′			856–875
Forward:5′CTCGTCCAGCGCCGCTTCGG3′	IS	123 bp	762–781
Reverse:5′CCTGCGAGCGTAGGCGTCGG3′			865–884
Forward:5′TGAACGTGGATGAAGTTGGTGGTG3′	β-globin	291 bp	-
Reverse:5′ACTTTCTTGCCATGAGCCTTCACCTT3