@inproceedings{inproceedingse937ddec,
title   = {Unusual complications of ascariasis in the biliary tract studied by ultrasonography},
author = {Cerri, Giovanni Guido and Scatigno, A and Wiermann, D and Magalhães, Álvaro Eduardo de Almeida},
year = {1989},
booktitle   = {Congres International de Radiologie}
}