Subcutaneous low-molecular-weight heparin compared with continuous intravenous heparin in the treatment of proximal deep-vein thrombosis - Hull, RD; Raskob, GE; Pineo, GF; Green, D; Trowbridge, AA; Elliot, G; Lerner, RG; Hall, J; Sparling, T; Brettell, HR; Norton, J; Carter, CJ; George, R; Merli, G; Ward, J; Mayo, W; Rosenbloom, D; Brant, R (N Engl J Med, 1992)