A randomised, doble-blind, placebo-controlled trial of dermatan sulfate for prevention of deep vein thrombosis in hip fracture - Agnelli, G; Cosmi, B; DiFilipo, P; Ranucci, V; Veschi, F; Longetti, M; Renga, C; Barzi, F; Gianese, F; Lupattelli, L; Rinonapoli, E; Nenci, GG (Thromb Haemost, 1992)