RT Journal Article SR Electronic T1 Ultrastructure of fenestrations in endothelial choriocapillaries of the rabbit--a freeze-fracturing study. JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 537 OP 543 DO 10.1136/bjo.64.7.537 VO 64 IS 7 A1 S Melamed A1 I Ben-Sira A1 Y Ben-Shaul YR 1980 UL http://bjo.bmj.com/content/64/7/537.abstract AB