Identification of a cryptic bacterial promoter in mouse (mdr1a) P-glycoprotein cDNA by Pluchino, KM, Esposito, D, Moen, JK, Hall, MD, Madigan, JP, Shukla, S, Procter, LV, Wall, VE, Schneider, TD, Pringle, I, Ambudkar, SV, Gill, D, Hyde, SC, Gottesman, MM