<spanclass="citation_author">Guglielmini, J. et al.</span>,
</label>
<spanclass="citation_article_title">Key components of the eight classes of type IV secretion systems involved in bacterial conjugation or protein secretion.</span>
<labelfor="taxonomySearch">by taxonomy <spanstyle="font-size:smaller; font-style:italic;">(enter at least 3 characters)</span>