1. Mathematic relationships between the width of a retinal artery and the widths of its branches;Parr;Am. J. Ophthalmol.,1974
2. Hypertensive retinal disease;Shelburne,1965
3. Normal retinal vascular pattern.;Stokoe;Arteriovenous ratio as a measure of arterial calibre. Br. J. Ophthalmol.,1966
4. A note on signs in the fundus oculi and arterial hypertension. Conventional assessment and significance.;Kagan;Bull. WHO,1966
5. Epidemiological studies in certain diseases of the fundus of the eye.;Michaelson;Acta Ophthalmol.,1969