<https://hearingreview.com/hearing-products/accessories/earmolds/in-situ-thresholds-for-hearing-aid-fittings-november-2012-hr>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://hearingreview.com/hearing-products/accessories/earmolds/in-situ-thresholds-for-hearing-aid-fittings-november-2012-hr>