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Gd-DOTA (Dotarem; Guerbet, Aulnay-sous-Bois, France) and Gd-DTPA (Magnevist; Schering, Berlin, Germany). Two examples of clinically used Gd3+ poly(amino carboxylate) complexes. All other approved Gd3+-based contrast agents are derivatives of Gd-DOTA or Gd-DTPA.
