@article{ref1,
title="Follow-up on a follow-up study: pitfalls and ethical implications",
journal="Journal of pediatric psychology",
year="1982",
author="Arnold, L. E.",
volume="7",
number="3",
pages="345-348",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0146-8693",
doi="",
url="http://dx.doi.org/"
}