title: The middle molecule in present day hemodialysis.
mesh_terms: D003404:Creatinine / Q000097:blood; D003973:Diatrizoate / Q000097:blood; D006801:Humans; D008970:Molecular Weight; D006435:Renal Dialysis; D014508:Urea / Q000097:blood; D014805:Vitamin B 12 / Q000097:blood
chemical_list: D003973:Diatrizoate; D014508:Urea; D003404:Creatinine; D014805:Vitamin B 12