Retrieved 25 January 2014. ↑ Spano, JP; Chodkiewicz, C; Maurel, J; Wong, R; Wasan, H; Barone, C; Létourneau, R; Bajetta, E; Pithavala, Y; Bycott, P; Trask, P; Liau, K; Ricart, AD; Kim, S; Rixe, O (June 2008).