@book{505145,
	author = {Sordo, L. and et al.},
	title = {Potential bias due to outcome-related loss to follow-up in cohort studies on incidence of drug injection: systematic review and meta-analysis},
	url = {\\Srvdatos\siis\docus\Revistas electrónicas\Addiction R.696\2015\Potential bias due to outcome-related loss to follow-up.pdf}
}