Psychophysiological reactions of internet users exposed to fluoride information and disinformation: protocol for a randomized controlled trial - Lotto, Matheus; Jorge, Olívia Santana; Menezes, Tamires de Sá; Ramalho, Ana Maria; Oliveira, Thais Marchini de; Bevilacqua, Fernando; Cruvinel, Thiago (JMIR Research Protocols, 2022)