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. 2013 Jul 24;60(6):626–633. doi: 10.1111/jeu.12069

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Published 2013. This article is a U.S. Government work and is in the public domain in the USA

This article is being made freely available through PubMed Central as part of the COVID-19 public health emergency response. It can be used for unrestricted research re-use and analysis in any form or by any means with acknowledgement of the original source, for the duration of the public health emergency.

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A predicted secondary structure for clone 4 of the 18S rRNA gene of CDC:V621 with areas of micro‐heterogeneity among the 10 clones indicated by arrows and the clone where the variation occurred designated with the clone number. The long inserted stem, E23‐13‐2, is outlined by a thick three‐sided box. Insertions are indicated by an arrow that does not point to a specific base. Deletions are indicated by an arrow pointing away from the specific base that has been deleted. Transitions and transversions are indicated where a base at the shaft end of the arrow is different from the base at the arrowhead point.