The MothurChimera class is parent to the classes in this grouping.

Chimera checking preferred methods (not in this grouping, implemented ):

* chimera.uchime which is a wrapper for the uchime program
* chimera.vsearch which is a wrapper for the vsearch program

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Bellerophon class implements the oldest chimera checking method.

It is legacy code. Other methods are much faster and more accurate.

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