Links
[1] http://ghr.nlm.nih.gov/gene/COL4A1
[2] https://disorders.eyes.arizona.edu/disorders/retinal-arteriolar-tortuosity
[3] http://omim.org/entry/180000
[4] https://disorders.eyes.arizona.edu/references/col4a1-mutations-cause-progressive-retinal-neovascular-defects-and-retinopathy
[5] https://disorders.eyes.arizona.edu/references/novel-col4a1-mutations-associated-hanac-syndrome-role-triple-helical-cb3iv-domain
[6] https://disorders.eyes.arizona.edu/references/autosomal-dominant-familial-hematuria-retinal-arteriolar-tortuosity-and-contractures-nove