PT - JOURNAL ARTICLE AU - Sunmee Wee AU - Sheila E. Specio AU - George F Koob TI - Effects of dose and session duration on cocaine self-administration in rats AID - 10.1124/jpet.106.113340 DP - 2007 Jan 03 TA - Journal of Pharmacology and Experimental Therapeutics 4099 - http://jpet.aspetjournals.org/content/early/2007/01/03/jpet.106.113340.short 4100 - http://jpet.aspetjournals.org/content/early/2007/01/03/jpet.106.113340.full