Tender For corrigendum : supply of iv contrast media c c - iv non ionic low osmolar 370mg per ml iopromide , iv non ionic low osmolar 350mg perml iobitridol , iv non ionic low osmolar 400mg per ml iomeperol , iv contrast macrocyclic 1mmol per ml gadobutral , iv contrast macrocyclic point five mmol per ml gadoteric acid , contrast iv macrocyclic point five mmol per ml gadobenic acid , ionic contrast diatriozoate sod , iohexol 300 to 400 mg per ml radioopaque contrast dye , iodixanol 300 to 400 mg per ml radioopaque contrast dye