5Agersberg A,Dahl R,Martinez I. Sample Preparation and DNA extraction procedures for PCR indentification of L isteria monocytogenes in Seafoods[J]. International Journal of Food Microbi ology,1997,35(3) :275-280.
6Gooding CM,Choudary PV. Rapid and Sensitive Immunomagnet ic Separation PCR Method for the Detection of Escherichial Coli O157:H7 in Raw Milk and Ice Cream[J]. Journal of Diary Reserch, 1997,64(1) :87-93.
7Hartman AB, Venkatesan M, Oaks EV, et al. Sequence and molecula characterization of a multicopy invasion plasmid antigen gene,ipaH,of Shigella flexneri[J]. Journal Bacteriol, 1990,172 (4):1905-1915.
