@article{ref1,
title="The ethics of the use of placebo in clinical studies",
journal="Jornal Brasileiro de Psiquiatria",
year="2001",
author="Andreatini, R. and Nogueira Pires, M.L. and Calil, H.M.",
volume="50",
number="7-8",
pages="241-245",
abstract="<p>[Abstract unavailable]</p><p>Language: pt</p>",
language="pt",
issn="0047-2085",
doi="",
url="http://dx.doi.org/"
}