High blood levels of chromogranin A in giant cell arteritis identify patients refractory to corticosteroid treatment. Issue 2 (12th January 2009) - Di Comite, G; Previtali, P; Rossi, C M; Dell'Antonio, G; Rovere-Querini, P; Praderio, L; Dagna, L; Corti, A; Doglioni, C; Maseri, A; Sabbadini, M G; Manfredi, A A