Plasmatic and urinary levels of guanidino compounds in patients with argininemia. Patient 1 first control post-OLT at * 20 months and later ** at 8 years post-OLT. Patient 2 first control post-OLT at * 26 months and later ** at 4.5 years post-OLT. α-KVA α-keto-δ guanidinovaleric acid, CR creatine, GAA guanidinoacetic acid, αAA α-N-acetylarginine, ARGA argininic acid, Creat creatinine, YGBA γ-guanidinobutyric acid, Arg arginine, HARG homoarginine, GND guanidine