PT - JOURNAL ARTICLE AU - Hoffmeister, Friedrich AU - Wuttke, Wolfgang TI - Psychotropic Drugs as Negative Reinforcers DP - 1975 Sep 01 TA - Pharmacological Reviews PG - 419--428 VI - 27 IP - 3 4099 - http://pharmrev.aspetjournals.org/content/27/3/419.short 4100 - http://pharmrev.aspetjournals.org/content/27/3/419.full SO - Pharmacol Rev1975 Sep 01; 27