Subcutanenous low-molecular-weight heparin compared with continous intravenous heparin in the treatment of proximal vein thrombosis - Hull, R D; Raskob, G E; Pineo, G F; Green, D; Trowbridge, A A; Elliott, C G; Lerner, R G; Hall, J; Sparling, T; Brettell, H R; Norton, J; Carter, C J; George, R; Merli, G; Ward, J; Mayo, W; Koscnhloom, D; Brant, R (N Engl J Med, 1992)