@misc{misc87155a00,
title   = {Ultrasonography in the differential diagnosis of pelvic masses},
author = {Machado, J. C. and Berezowski, Aderson Tadeu and Reis, F. J. C. and Andrade, Jurandyr Moreira de and Carrara, Helio Humberto Angotti and Costa, F. S. and Boghetti, Sérgio},
year = {1999},
booktitle   = {World Congress of Ultrasound in Obstetrics and Gynecology}
}