Changes over time in diagnostics with nuclear scan strategy in a large series of special subsets of chest pain patients analysed with the propensity score matching. (1st November 2016) - Conti, Alberto; Lazzeretti, Delia; Bianchi, Simone; Vanni, Simone; Grifoni, Stefano; Bonini, Rita; Gallini, Chiara; Costanzo, Egidio