@article{ref1,
title="The range and effectiveness of safety headgear products",
journal="European journal of orthodontics",
year="1989",
author="Postlethwaite, K.",
volume="11",
number="3",
pages="228-234",
abstract="The range of safety headgear products currently available is described. The paper also presents the results obtained when an Instron machine was used to carry out preliminary laboratory tests to evaluate the relative effectiveness of the safety release headgear systems.<p /><p>Language: en</p>",
language="en",
issn="0141-5387",
doi="",
url="http://dx.doi.org/"
}