Placebo and nocebo response magnitude on temporomandibular disorder-related pain: a systematic review and meta-analysis - Porporatti, André Luís; Costa, Yuri Martins; Réus, Jéssica Conti; Stuginski-Barbosa, Juliana; Conti, Paulo César Rodrigues; Velly, Ana Míriam; Canto, Graziela de Luca (Journal of Oral Rehabilitation, 2019)