Influence of catechol-O-methyltransferase (COMT) gene polymorphisms in pain sensibility of Brazilian fibromialgia patients - Barbosa, Flávia Regina; Matsuda, Josie Budag; Mazucato, Mendelson; França, Suzelei de Castro; Zingaretti, Sônia Marli; Silva, Lucienir Maria da; Martinez-Rossi, Nilce Maria; Faria Júnior, Milton; Marins, Mozart; Fachin, Ana Lúcia (Rheumatology International, 2012)