Epidemiologic trends in drug abuse (Online)

v.1 June 1997; v.1 June 1996; v.1 Dec. 1996; v.1 Dec. 1995; v.1 Dec. 1994; v.1 Dec. 1997; v.1 June 1998; v.2 June 1998; v.1 Dec. 2000; v.2 Dec. 2000; Dec 1994:1; Dec 1995:1; Dec 1995:2; June 1997:1; June 1997:2; Dec 1997:1; Dec 2000; Dec 2002:1; June 2002:2; June 2004:1; Jan 2006:1; June 2007:2; Jan 2009; v.1 Jun. 2005; no.95-3990; no.96-4126; 1996 Dec; no.98-4207; no.99-4527; no.00-4529; no.00-4530; no.00-4739; no.00-4740; no.00-4739A; no.00-4740A; no.01-4916; no.01-4917; no.01-4917A; no.02-5109; no.02-5110; no.03-5109A; no.03-5110a; no.03-5364; no.03-5365; no.04-5364A; no.04-5365A; no.95-3988,etc.; no.96-4129; no.97-4204; no.97-4205; no.98-4208A; no.98-4207; no.98-4297; no.99-4527 v.2; no.00-4529 v.1; no.00-4530 v.2; no.00-4739; no.00-4739A; no.00-4740A; no.98-4208B; no.98-4297; no.04-5364; no.05-5364A; no.05-5365A; no.05-5280; no.05-5280A; no.05-5282; no.06-5281A; no.06-5282A; no.06-5281A; no.01-4916A; no.06-5878A; no.06-5880; no.07-5879A; no.07-6200; no. 96-4128; no.08-6204A; no.08-6200A; no.09-6422; no.00-4740; no.09-6420; 2000-2 v.2; 2000 v.2; 2000-2 v.1; 2000 v.1; 1999-2 v.2; 1999 v.2; 1999-2 v.1; 1999 v.1; 1998 v.2; 1998-2 v.1; 1997-2 [v.2]; 1997-2 v.1; 1997 v.1; 1996 v.2; 1995 v.1; 1994 v.1; 997/V.3; v.1 1996 Dec.; v.2 1996 Dec.; v.1 1996 June; v.2 1995 Dec.; v.1 1995 June 1998:v.1; 1997:v.3; 1997:v.2; 1997:v.1; 1996:v.2; 1996:v.1; 1995:v.2; 1995:v.1; 1994-2:v.1; 2000-2:v.2; 2000-2:v.1; 2000:v.2; 2000:v.1; 1998-2:v.2; 1998-2:v.1; v.2 1999:June = 999/v.2; v.1 1999:June = 999/v.1; v.2 1999:Dec. = 999-2/v.2; v.1 1999:Dec. = 999-2/v.1; v.1 2000:June = 2000/v.1; v.2 2000:June = 2000/v.2; v.1 2000:Dec. = 2000-2/v.1; v.2 2000:Dec. = 2000-2/v.2; 2000:June:v.1; 2000:June:v.2; 2000:Dec.:v.2; 2000:Dec.:v.1