@article {:2003:0114-9954:11, title = "Methadone interaction: Interaction with concomitant hypericum leading to decreased plasma methadone levels: 4 case reports", journal = "Reactions", volume = "1", year = "2003", abstract = "", pages = "11-11(1)", url = "http://www.ingentaconnect.com/content/adis/rea/2003/00000001/00000961/art00033" }