Fig.1. NHS Choices
In 1999 Jakob Nielsen wrote a book on 'Web Design'; his principles hold true over a decade later, indeed, NHS Choices could have been designed by a team with this web design bible on their desks.
We read differently when faced with a screen. We read differently when there is a urgency to pin something down. This is learning as consumption, and learning 'just in time'. It is also applied learning. Simply returning to these pages does, in time, enhance the likelihood that you'll recall the content, but what improves further on this are the patient comments - or any other, subtle, incremental adjustments that refresh the viewing.
The problem, by way of comparison, with Wikipedia, is that the content has become overworked and the more the experts get involved the more impenetrable it becomes. A filter is required that personalises the experience so that the content that you are exposed to develops alongside your understand of what it says. Are their pages that know that you are still at primary school, secondary school or an undergraduate for example. This too would be too crude based on subject specialism. Or does this come down to your choices from those offered by the browser? If you are in higher education that you automatically use Google Scholar and read peer-reviewed papers rather than webpages aimed at the general public.
This isn't aimed at medical students.