Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) The TIMAD Study Group,Ticlopidine treatment reduces the progression of nonproliferative diabetic retinopathy,Arch Ophthalmol,,,1990,108,,1577-1583,https://cir.nii.ac.jp/crid/1570572699742119040,