@article{ref1,
title="The relationship of the birthplace of parents and grandparents to the refractive state of the child",
journal="American journal of optometry and archives of American Academy of Optometry",
year="1955",
author="Nadell, M. C. and Hirsch, M. J.",
volume="32",
number="3",
pages="137-141",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9408",
doi="",
url="http://dx.doi.org/"
}