Effects of combining manual therapy, neck muscle exercises, and therapeutic pain neuroscience education in patients with migraine: a study protocol for a randomized clinical trial - Tolentino, Gabriella de Almeida; Florencio, Lidiane Lima; Pinheiro, Carina Ferreira; Dach, Fabiola; Fernández-de-las-Peñas, César; Bevilaqua-Grossi, Débora (BMC Neurology, 2021)