@book{154612,
	author = {AGRAWAL, A. and ET AL.},
	title = {EARLY CANNABIS USE AND DSM-IV NICOTINE DEPENDENCE: A TWIN STUDY},
	url = {\\Srvdatos\siis\docus\Revistas electrónicas\Addiction R.696\2008\Early cannabis use and DSM-IV.pdf}
}