4Sameer Sakallah, Willian Pasculle,Robert Lanning,et al. Typing of Legionella pneumophila serogroup lisolates by degenerate(D-)RAPD fingerprinting. Molecular and Cellular Probes. 1995,9:405-41.
5Williams JGK, Kubelik AR, Livak K J, et al, DNA polymorphisms amplified by arbitrary primers are useful as genetic markers. Nucleic Acids Res, 1990,18:6531 - 6535.