@article{ref1,
title="Letter: The unwanted pregnancy",
journal="Canadian Medical Association journal",
year="1975",
author="Tompkins, K. J.",
volume="112",
number="3",
pages="279-280",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0008-4409",
doi="",
url="http://dx.doi.org/"
}