IN VIVO INHIBITION OF DIPEPTIDYL PEPTIDASE IV (DPP IV) BY PRO-PRO-DIPHENYL PHOSPHONATE (DIPROFEN). (November 1996) - De Meester, I.; Lambeir, AM.; Belyaev, A.; Borloo, M.; De Meyer, GRY.; Vanhoof, G.; Haemers, A.; Scharpé, S.