RT Journal Article SR Electronic T1 Modulation of the renin-angiotensin system and retinopathy JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP i29 OP i31 DO 10.1136/heart.84.suppl_1.i29 VO 84 IS suppl 1 A1 Nish Chaturvedi YR 2000 UL http://heart.bmj.com/content/84/suppl_1/i29.abstract AB