The DAS-28 and its derivatives are protected by copyright with all rights reserved to Prof. dr. Piet L.C.M. van Riel. Mapi Research Trust a not for-profit company located in France , distributes the DAS-28 internationally.
If you are interested in using the DAS-28, please submit your request through ePROVIDE, Mapi Research Trust’s online platform at https://eprovide.mapi-trust.org/
