McDevitt CA, Shintre CA, Grossmann JG, Pollock NL, Prince SM, Callaghan R, Ford RC. Structural insights into P-glycoprotein (ABCB1) by small angle X-ray scattering and electron crystallography. FEBS Lett. 2008 Aug 20;582(19):2950–6. doi: 10.1016/j.febslet.2008.07.022. PMID: 18657537.