@article{ref1,
title="Recurrent pre-retinal hemorrhages following a negative "g" maneuver on school playground equipment",
journal="Journal of pediatrics",
year="1978",
author="Rabinovitch, P. and McLean, E. B. and Beck, G. R. and Brown, A. C.",
volume="92",
number="5",
pages="846-847",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-3476",
doi="",
url="http://dx.doi.org/"
}