1Walsh P S, Metzger D A, Higuehi R, et al. Chelex 100 as a medium for simple extraction of I)NA for PCR-based typingfrom forensic material[J]. Biotechniques, 1991, 10:506-518.
2Odelberg S J, White R. Repetitive I)NA:molecular structure, polymorphism and forensic application, in DNA and other polymorphisms in forensic science [ M ]. Chicago : Year Book Medical Publishers Inc, 1990:26.
3Edwards A, Hammond H A, Jin J, et al. Genetic variationat five trimerie and tetrameric tandem repeat loci in four human population groups [ J ]. Genomics, 1992, 12:241-253.