<https://curriculum.rcophth.ac.uk/2017/07/hydroxychloroquine-and-chloroquine-retinopathy-recommendations-on-screening-membership-consultation/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://curriculum.rcophth.ac.uk/2017/07/hydroxychloroquine-and-chloroquine-retinopathy-recommendations-on-screening-membership-consultation/>