PT - JOURNAL ARTICLE AU - Joost Pil AU - Jan Tytgat TI - Serine 329 of the mu opioid receptor interacts differently with agonists AID - 10.1124/jpet.102.040113 DP - 2002 Nov 25 TA - Journal of Pharmacology and Experimental Therapeutics 4099 - http://jpet.aspetjournals.org/content/early/2002/11/25/jpet.102.040113.short 4100 - http://jpet.aspetjournals.org/content/early/2002/11/25/jpet.102.040113.full