@article{ref1,
title="Different aspects of preventive medicine and their relationship to the political and administrative context",
journal="Annales des Sociétés Belges de Médecine Tropicale, de Parasitologie, et de Mycologie",
year="1970",
author="Evang, K.",
volume="50",
number="4",
pages="411-423",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0037-9638",
doi="",
url="http://dx.doi.org/"
}