@article{ref1,
title="Relative hazards to radiation workers in various classes of diagnostic x-ray procedures, with special reference to ward and theatre radiography",
journal="Australasian radiology",
year="1972",
author="Williamson, B. D. and Paris, N. F. and Samsen, L.",
volume="16",
number="2",
pages="198-210",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0004-8461",
doi="",
url="http://dx.doi.org/"
}