At least one study making such a claim was retracted for not disclosing the authors’ financial ties to the tobacco industry. https://erj.ersjournals.com/conten

At least one study making such a claim was retracted for not disclosing the authors’ financial ties to the tobacco industry. https://erj.ersjournals.com/content/57/3/2002144 https://erj.ersjournals.com/content/57/3/2002144 Knowing the industry is secretly pushing favorable coverage, I’m treating claims like this with more skepticism.