1. Division of Dermatology, Department of Medicine, Faculty of Medicine Chulalongkorn University Bangkok Thailand
2. Division of Nephrology, Department of Medicine, Faculty of Medicine Chulalongkorn University Bangkok Thailand
3. Division of Clinical Epidemiology, Department of Medicine, Faculty of Medicine Chulalongkorn University Bangkok Thailand
4. King Chulalongkorn Memorial Hospital Thai Red Cross Society Bangkok Thailand
5. Research Unit for Metabolic Bone Disease in CKD Patients, Faculty of Medicine Chulalongkorn University Bangkok Thailand
6. Department of Research Affairs Chulalongkorn University Bangkok Thailand
7. Skin and Allergy Research Unit Chulalongkorn University Bangkok Thailand