Research ArticleCELLULAR AND MOLECULAR
Outward Transfer of Dopamine Precursor l-3,4-Dihydroxyphenylalanine (l-dopa) by Native and Human P-glycoprotein in LLC-PK1 and LLC-GA5 Col300 Renal Cells
Patrício Soares-da-Silva and Maria Paula Serrão
Journal of Pharmacology and Experimental Therapeutics May 2000, 293 (2) 697-704;