参考文献

Actelion Pharmaceuticals Ltd.; Bur, Daniel; Corminboeup, Olivier; Gren, Sylvaine; Grisostomi, Corinna; Leroy, Xavier; Richard-Bildstein, Sylvia; Pozzi, Davide Patent: US2013/231319 A1, 2013 ; Location in patent: Paragraph 0556 ;