参考文献:
VERTEX PHARMACEUTICALS INCORPORATED CHARRIER, Jean-Damien BINCH, Haley, Marie HURLEY, Dennis, James CLEVELAND, Thomas JOSHI, Pramod FANNING, Lev Tyler, Dewey PINDER, Joanne O'DONNELL, Michael VIRANI, Anisa, Nizarali KNEGTEL, Ronald, Marcellus Alphonsus DURRANT, Steven, John YOUNG, Stephen, Clinton PIERRE-HENRI KAY, David REAPER, Philip, Michael Patent: WO/4346 A, Location in patent: Page/Page column 56-57 WO /4346 A