@book{125466,
	author = {SHIFFMAN, S. and ET AL.},
	title = {PATTERNS OF OVER-THE-COUNTER NICOTINE GUM USE. PERSISTENT USE AND CONCURRENT SMOKING},
	url = {\\Srvdatos\siis\docus\Revistas electrónicas\Addiction R.696\2003\Patterns of over-the-counter nicotine.pdf}
}