Parnaparin versus aspirin in the treatment of retinal vein occlusion. A randomized, double blind, controlled study.

Ageno, Walter; Cattaneo, R; Manfredi, E; Chelazzi, P; Venco, L; Ghirarduzzi, A; Cimino, L; Filippucci, E; Ricci, Al; Romanelli, D; Incorvaia, C; D'Angelo, S; Campana, F; Molfino, F; Scannapieco, G; Rubbi, F; Imberti, D.