[1] Univ G DAnnunzio, Ctr Studi Invecchiamento, Lab Biochim Analit & Proteom, I-66013 Chieti, Italy
[2] Univ G DAnnunzio, Dipartimento Sci Biomed, I-66013 Chieti, Italy
[3] Landeskrankenhaus Klagenfurt, Inst Med & Chem Lab Diagnost, Klagenfurt, Austria
[4] Univ Roma Tor Vergata, Policlin Tor Vergata, Dipartimento Med Lab, Rome, Italy
[5] Osped Pediat Bambino Gesu, IRCCS, Lab Anal, Rome, Italy
[6] Deutsch Krebsforschungszentrum, D-6900 Heidelberg, Germany