@article{ref1,
title="Biostatistical implications of design, sampling, and measurement to health science data analysis",
journal="Annual review of public health",
year="1980",
author="Koch, G. G. and Gillings, D. B. and Stokes, M. E.",
volume="1",
number="",
pages="163-225",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0163-7525",
doi="10.1146/annurev.pu.01.050180.001115",
url="http://dx.doi.org/10.1146/annurev.pu.01.050180.001115"
}