@Article{schoenberg1997-ras,
  author =          {Schoenberg, S O},
  author =          {Knopp, M V},
  author =          {Bock, M},
  author =          {Kallinowski, F},
  author =          {Just, A},
  author =          {Essig, M},
  author =          {Hawighorst, H},
  author =          {Schad, L R},
  author =          {van Kaick, G},
  title =           {Renal artery stenosis: Grading of hemodynamic changes with cine phase-contrast MR blood flow measurements},
  journal =         {Radiology},
  year =            {1997},
  volume =          {203},
  pages =           {45-53}}