@article{ref1,
title="Serum-insulin levels in hypoglycaemic shock due to attempted suicide with tolbutamide and with insulin",
journal="German medical monthly",
year="1969",
author="Creutzfeldt, W. and Frerichs, H. and Perings, E.",
volume="14",
number="1",
pages="14-6 passim",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0016-8785",
doi="",
url="http://dx.doi.org/"
}