<https://campaignforbetterhearing.ca/2016/02/why-you-should-be-wary-of-buying-hearing-amplifiers-online/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://campaignforbetterhearing.ca/2016/02/why-you-should-be-wary-of-buying-hearing-amplifiers-online/>