Our Association collaborates with various national and international research organizations, the scientists of which joined OPUR.

You are welcome to contact our regional and international representatives:

BENIN : Mr. Gabin KOTO N’GOBI

CHILI : Dr. Jean-Gabriel MINONZIO

FRENCH POLYNESIA: Dr. Pascal ORTEGA

GERMANY: Dr. Alexander GRAF

INDIA : Dr. Anil Kumar ROY

ISRAEL: Pfr. Simon BERKOWICZ

MEDITERRANEAN ISLANDS : Dr. Marc MUSELLI

NETHERLANDS: Dr. Bert HEUSINKVELD

SPAIN: Dr. Anne DEJOAN

SWEDEN: Dr. Torbjörn NILSSON

TAIWAN: Dr. Francois BELLET-ODENT

UNITED KINGDOM: Mr. Richard Gordon JONES