Policlinico S. Orsola - Malpighi - UOC Nefrologia, Dialisi e Ipertensione, Bologna, Emilia Romagna, Italy
Internà oddělenà Strahov VFN, Praha, Czech Republic
Beijing Friendship Hospital,Capital Medical University, Beijing, China
China PLA General Hospital (301 hospital), Beijing, China
Canadian Centre for Advanced Eye Therapeutics Inc., Mississauga, Ontario, Canada
Georg-Haas Dialysezentrum der PHV, Gießen, Hessen, Germany