Before revision:  Furthermore, we ] obtain the analytic time-dependent distribution of the protein concentration for the classical Friedman-Cai-Xie random bursting model   .
After revision:  Furthermore, we ] obtain the analytic time-dependent distribution of the protein concentration for the classical Friedman-Cai-Xie random bursting model Phys. Rev. Lett. 97:168302, 2006 .