http://www.club-dm.jp/website/content/novocare_smile/lets_focus15-1.aspx
http://www.dm-net.co.jp/qa1000_2/2006/04/q255q251q254_1.html
http://www.furano.ne.jp/utsumi/dm/complication/nephropathy.htm
http://www.lab.toho-u.ac.jp/med/omori/neph/patient/ckd/diabetic.html
http://medical.radionikkei.jp/suzuken/final/080619html/index2.html