<p><b>Copyright information:</b></p><p>Taken from "Universal primers for HBV genome DNA amplification across subtypes: a case study for designing more effective viral primers"</p><p>http://www.virologyj.com/content/4/1/92</p><p>Virology Journal 2007;4():92-92.</p><p>Published online 24 Sep 2007</p><p>PMCID:PMC2099425.</p><p></p>leotide, otherwise outputs a '-'. The cutoff was set to (0.05, 1), and the step length is 0.05. The frequency is listed in the left box and the nucleotides are in the right box