[1] Univ Verona, Sect Clin Biochem, Verona, Italy
[2] Univ Verona, Sch Med, Verona, Italy
[3] Prov Agcy Social & Sanit Serv APSS, Rovereto Hosp, Serv Clin Governance & Med Direct, Med Direct, Trento, Italy
[4] Stanford Univ, Sch Med, Div Cardiovasc Med, Stanford, CA USA