Creatine supplementation in fibromyalgia: a randomized, double-blind, placebo-controlled trial - Alves, Christiano Robles Rodrigues; Santiago, Bianca M.; Lima, Fernanda R.; Otaduy, Maria C. G.; Calich, Ana Luisa; Tritto, Aline C. C.; Pinto, Ana Lúcia de Sá; Roschel, Hamilton; Leite, Cláudia da Costa; Benatti, Fabiana Braga; Bonfá, Eloísa Silva Dutra de Oliveira; Gualano, Bruno (Arthritis Care & Research, 2013)