Embracing multi‐causation of periodontitis: Why aren't we there yet?. (27th December 2021) - Frandsen Lau, Ellen; Peterson, Douglas E.; Leite, Fabio R. M.; Nascimento, Gustavo G.; Robledo‐Sierra, Jairo; Porat Ben Amy, Dalit; Kerr, Ross; Lopez, Rodrigo; Baelum, Vibeke; Lodi, Giovanni; Varoni, Elena M.