Juvenile fibromyalgia syndrome: Blunted heart rate response and cardiac autonomic dysfunction at diagnosis - Maia, Magda M; Gualano, Bruno; Sá-Pinto, Ana L; Sallum, Adriana M. E; Pereira, Rosa Maria Rodrigues; Len, Claudio A; Terreri, Maria T. A; Barbosa, Cassia M; Roschel, Hamilton; Silva, Clovis Artur Almeida da (Seminars in Arthritis and Rheumatism, 2016)