@article{ref1,
title="Roche responds to 'new warnings on the use of isotretinoin (Roaccutane)'",
journal="South African medical journal SAMJ",
year="1999",
author="Ebrahim, O. and Bredenhann, M.",
volume="89",
number="1",
pages="e16-e16",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0038-2469",
doi="",
url="http://dx.doi.org/"
}