PT - JOURNAL ARTICLE AU - J E Barrett AU - J O Valentine AU - J L Katz TI - Effects of chlordiazepoxide and d-amphetamine on responding of squirrel monkeys maintained under concurrent or second-order schedules of response-produced food or electric shock presentation. DP - 1981 Oct 01 TA - Journal of Pharmacology and Experimental Therapeutics PG - 199--206 VI - 219 IP - 1 4099 - http://jpet.aspetjournals.org/content/219/1/199.short 4100 - http://jpet.aspetjournals.org/content/219/1/199.full SO - J Pharmacol Exp Ther1981 Oct 01; 219