@article{ref1,
title="Swimming instruction for pre-school children",
journal="IMJ Illinois medical journal",
year="1974",
author="Diamond, Eugene F.",
volume="146",
number="1",
pages="25-7 contd",
abstract="unavailable.  Keywords: Drowning; Drowning Prevention; Water Safety",
language="",
issn="0019-2120",
doi="",
url="http://dx.doi.org/"
}