In vivo imaging of extraction fraction of low molecular weight MR contrast agents and perfusion rate in rodent tumors.
Kovar DA, Lewis MZ, River JN, Lipton MJ, Karczmar GS. In vivo imaging of extraction fraction of low molecular weight MR contrast agents and perfusion rate in rodent tumors. Magn Reson Med. 1997 Aug; 38(2):259-68.