@article{article60568b91, title = {EUS-guided FNA facilitates the diagnosis of retroperitoneal endometriosis}, author = {Artifon, Everson L. A. and Franzini, Tomazo A. P. and Kumar, Atul and Matsura, Paulo F. and Furuya, Carlos K. and Ishioka, Shinichi and Sakai, Paulo}, year = {2007}, doi = {10.1016/j.gie.2006.12.049}, journal = {Gastrointestinal Endoscopy} }