参考文献:
BOEHRINGER INGELHEIM INTERNATIONAL GMBH FRANK, Markus HAEBERLE, Hans HENRY, Manuel PACHUR, Thorsten SANTAGOSTINO, Marco STERTZ, Uwe TREBING, Thomas WERTHMANN, Ulrike Patent: WO202/5803 A, 202 Location in patent: Page/Page column 27 WO 202/05803 A