2004.    Baker Heart Research Institute, Department for Diabetic Complications, Melbourne, Victoria, Australia.

2005.    University Hospital Erlangen, Childrens and Adolescents Hospital, Erlangen, Germany. 

2008.    Medical Faculty University of Rijeka, Croatia. 

2009.    Medical Faculty University of Ljubljana, Slovenia.

2013.    AREA Science Park, Cluster in Biomedicine, Bazzovica, Trieste, Italy.

2015.    Medical Genetics Laboratory, Russian Research Centre of Surgery RAMS 2, Moscow, Russia .

2017.    Medical Genetics, The Victor Babes University of Medicine and Pharmacy, Timisoara, Romania .

2017.    Division of Nephrology, Columbia University, College of Physicians and Surgeons, New York, USA .