PT - JOURNAL ARTICLE AU - Ann E. Kelley AU - Kent C. Berridge TI - The Neuroscience of Natural Rewards: Relevance to Addictive Drugs AID - 10.1523/JNEUROSCI.22-09-03306.2002 DP - 2002 May 01 TA - The Journal of Neuroscience PG - 3306--3311 VI - 22 IP - 9 4099 - http://www.jneurosci.org/content/22/9/3306.short 4100 - http://www.jneurosci.org/content/22/9/3306.full SO - J. Neurosci.2002 May 01; 22