Reading another post concerning links to useful sources of information.
When I need to check things concerning difference health issues I usually check out the following sources of information.
The links below may help to make things a little easier when comparing different sources of information.
I don't rely on one source of information myself, I suspect many others don't either, I find it helpful to know different organisations and recognised sources of information are available.
NHS, NICE, BMA
Just with selecting different search terms, medical conditions, lots of reliable information can be found.
A few links I've found helpful.