Allergic contact dermatitis to braces containing 4, 4′‐diaminodiphenylmethane, a previously unreported causative agent. (18th May 2020) - Di Altobrando, Ambra; Vincenzi, Colombina; La Placa, Michelangelo; Tomasini, Claudia; Ravarino, Paolo; Neri, Iria