MedicineNet Constipation SpecialtyMedicineNet Constipation SpecialtyGenetic Factors Affect Codeine's Work as Painkiller- June 9, 2008 Title: Genetic Factors Affect Codeine's Work as PainkillerCategory: Health NewsCreated: 672008 2:00:00 AMLast Editorial Review: 692008http://www.medicinenet.com/guide.asp?s=rss&a=90086&k=Constipation_Specialty |