1998c-152 california cocaine cocaineabuse cocaineindustry crack(drug) crackcocaine crime drugabuse drugabuseandcrime drugabuseinpregnancy drugandnarcoticcontrol drugcontrol drugindustry druguse governmentpolicy heroinabuse heroindependence juvenileliterature peru physiologicaleffect pregnancy pregnantwomen psychologicalaspects publicpolicy substance-relateddisorders unitedstates wm270g633m1997