參考文獻:
Chiesi Farmaceutici S.p.A. Van Niel, Monique Bodil Ray, Nicholas Charles Cridland, Andrew Peter Hurley, Christopher Alcaraz, Lilian Panchal, Terry Aaron Jennings, Andrew Stephen Robert Armani, Elisabetta Patent: US2013/150361 A1, 2013 Location in patent: Paragraph 0446 0447