Anaesthetic injection versus ischemic compression for the pain relief of abdominal wall trigger points in women with chronic pelvic pain - Montenegro, Mary L. L. S.; Braz, Carolina A.; Rosa e Silva, Júlio César; Candido-dos-Reis, Francisco José; Nogueira, Antonio Alberto; Poli Neto, Omero Benedicto (BMC Anesthesiology, 2015)