Abdominal myofascial pain syndrome must be considered in the differential diagnosis of chronic pelvic pain - Montenegro, Mary Lourdes Lima de Souza; Gomide, Liana Barbaresco; Mateus-Vasconcelos, Elaine L.; Rosa e Silva, Júlio César; Candido dos Reis, Francisco J.; Nogueira, Antonio Alberto; Poli Neto, Omero Benedicto (European Journal of Obstetrics & Gynecology and Reproductive Biology, 2009)