@book{180324,
	author = {Hungerbuehler, I. and et al.},
	title = {Drug checking: a prevention measure for a heterogeneous group with high consumption frequency and polydrug use. Evaluation of zurich's drug checking services},
	url = {\\Srvdatos\siis\docus\Revistas electrónicas\Harm Reduction Journal R.1830\2011\Drug checking. A prevention measure.pdf}
}