I am setting up an authority website and like the structure of WebMD and MayoClinic with regards to the structure of the site and health conditions. I already have everything started but am not sure on how to structure the categories, pages, posts, etc. For example, how would I set up a structure like Heart Conditions > Heart Attacks Where the "Heath Conditions" link would show all the relevant conditions under it? Would this be just a category link? A page? Would my "Heart Attacks" link be a page? A post? Any guidance would be appreciated.