William E., USA

William E., USA, November 2018, University Hospital Saarland Homburg, Dr. Winkler.

Oksana K., Belarus

Oksana K., Belarus, March, 2017, Park-Clinic Weissensee, PD, Dr. med. Oliver Hauschild.

Aizaryk D., Kazakhstan

Aizaryk D., Kazakhstan, August, 2017, University Hospital Bonn, Dr. Petrak.

Artavazd and Susambar, Armenia

Artavazd and Susambar, Armenia, November 2017, University Hospital Düsseldorf.

Younis Talib Jalal S., Iraq

Younis Talib Jalal S., Iraq, August, 2017, Urological Private Practice, Prof. Dr. med. H. Schuldes.

Ali Abdurahman A., Saudi Arabia

Ali Abdurahman A., Saudi Arabia, April, 2017, Asklepios Childrens Hospital in Sankt Augustin, Prof. Dr. med. Boulos Asfour.

William E., USA

William E., USA, November 2018, University Hospital Saarland Homburg, Prof. Dr. med. Samer Ezziddin.

Malika K., Kazakhstan

Malika K., Kazakhstan, January 2019, Beta Klinik Bonn, Prof. Dr. med. Christian E. Elger.

Irina K., Belarus

Irina K., Belarus, August, 2017, University Hospital Bonn, Prof. Dr. Finger.

Sanzhar A., Kazakhtan

Sanzhar A., Kazakhtan, November 2017, University Hospital Cologne.

Nemattilo T., Kyrgyzstan

Nemattilo T., Kyrgyzstan, July, 2017, Charite University Hospital Berlin, Prof. Dr. Walter Zidek.

Mykhailo N., Ukraine

Mykhailo N., Ukraine, October 2018, Clinic for Molecular Orthopedics Duesseldorf, Priv.-Doz. Dr. Baltzer.

Marwa Nabil Abdelmaksoud M., Egypt

Marwa Nabil Abdelmaksoud M., Egypt, July, 2017, Multispecialty Medical Center Preventicum.

Hrygorii V., Ukraine

Hrygorii V., Ukraine, September 2018, St. Vincentius Hospital Karlsruhe-Academic Hospital of the University of Freiburg, Prof. Dr. Christian Meyer.

Hazem Mahmoud Samy M., Egypt

Hazem Mahmoud Samy M., Egypt, August, 2017, Preventicum.