Periodontitis and early mortality among adults treated with hemodialysis: a multinational propensity-matched cohort study oleh Marinella Ruospo, Suetonia C Palmer, Germaine Wong, Jonathan C Craig, Massimo Petruzzi, Michele De Benedittis, Pauline Ford, David W Johnson, Marcello Tonelli, Patrizia Natale, Valeria Saglimbene, Fabio Pellegrini, Eduardo Celia, Ruben Gelfman, Miguel R Leal, Marietta Torok, Paul Stroumza, Anna Bednarek-Skublewska, Jan Dulawa, Luc Frantzen, Domingo del Castillo, Staffan Schon, Amparo G Bernat, Jorgen Hegbrant, Charlotta Wollheim, Letizia Gargano, Casper P. Bots, Giovanni FM Strippoli, on behalf of the ORALD Investigators