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In the article by T. Arnold and D. Linke (BioTechniques 43:427-438, doi 10.2144/000112566), References 59,60,61,62,63,64,65,66,67,68,69,70,71,72,73, were inadvertently excluded. The references appear below.
The BioTechniques staff sincerely regrets this oversight. The PDF and HTML versions of the article, available at www.BioTechniques.com , have been corrected.
