A double-blind multicenter trial comparing low molecular weight heparin once daily with low dose heparin twice daily: Thromboprophylactic effect and haemorrhagic complications - Bergqvist, D; Burmark, U S; Frisell, J; Hallbook, T; Lindblad, B; Risberg, B; Torngren, S; Wallin, G (Thromb Haemostas, 1985)
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