Unfortunately., the one organization that could actually gather all the facts, pro and con, compile it and scientifically analyze in a dispassionate way and look at it, not from a political point of view, but from a clinical one based on epidemiological point of view has been barred BY LAW from doing so, or even to be funded in any way to do so, by the Republican congress in the US: It's called the CDC.
Those brave kids in Florida trying to start a campaign to get congress to move should, in my estimation, be hitting that button first: Get a major write in campaign to your Senators - every one in the US - to tell them: "You are talking through your hat - don't have a clue what you are talking about - because there is no research. Please start immediately to task and fund the CDC to research the subject and illuminate the debate on all sides."
BTW, when the Republican killed that initiative by the CDC, they did it, clearly, at the behest of the NRA.
The CDC was playing games and not being terribly neutral. Studies like Kellermans did not help. Plus the CDC was suffering from mandate creep, guns are not a diseases.