@article{ref1,
title="Foreign bodies in the rectum. Report on 18 cases",
journal="Revista do Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo",
year="1971",
author="Haddad, J. and de Benedicto, J. M. and Ellenbogen, G. and de Paula, W. and Gama, A. H. and Simonsen, O. and Raia, A.",
volume="26",
number="4",
pages="137-140",
abstract="<p>[Abstract unavailable]</p><p>Language: pt</p>",
language="pt",
issn="0041-8781",
doi="",
url="http://dx.doi.org/"
}