Diabetic Nephropathy

• Azienda Ospedaliera OO.RR. Bergamo - Unità Operativa Diabetologia — Bergamo, Italy
• The Mario Negri Institute for Pharmacological Research- Clinical Research Center for Rare Diseases — Ranica, Bergamo, Italy
• Azienda Ospedaliera di Treviglio-Caravaggio - Unità Operativa Malattie Metaboliche e Diabetologia — Treviglio, Bergamo, Italy
• IRCCS Fondazione Centro S. Raffaele del Monte Tabor- Unità Operativa Medicina Generale — Milan, Milano, Italy

Not specified

• The Collaborative Study Group — Chicago, Illinois, United States

• Medical Investigations, Inc. — Little Rock, Arkansas, United States
• North America Research Institute — Azusa, California, United States
• California Institute of Renal Research — Chula Vista, California, United States
• California Kidney Specialists — Covina, California, United States

• Diabetes Mellitus and Endocrine Centre, Prince of Wales Hospital — Shatin, Hong Kong, China

• Touei Hospital — Sapporo, Hokkaido, Japan

Not specified

• Leila Azadbakht — Isfahan, Iran

• The Ottawa Hospital — Ottawa, Ontario, Canada

• Investigational site — Blagoevgrad, Bulgaria
• Investigational site — Pazardzhik, Bulgaria
• Investigational site — Pleven, Bulgaria
• Investigational site — Plovdiv, Bulgaria