<https://data.doctorgenius.com/definition/vivera-retainers.rdf>
<http://schema.org/sameAs>
<https://www.dentaly.org/us/adult-braces/teeth-retainers/vivera-retainers/>
<https://www.dentalexcellencegroupnj.com/dumont-nj/which-is-better-invisalign-or-braces/>