@article{ref1,
title="Open safety-pin swallowed by a ten months old infant: passed spontaneously per vias naturales",
journal="American journal of diseases of children (1911)",
year="1930",
author="Tumpeer, I. Harrison and Straus, David C.",
volume="40",
number="1",
pages="96-100",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0099-0698",
doi="10.1001/archpedi.1930.01940010107010",
url="http://dx.doi.org/10.1001/archpedi.1930.01940010107010"
}