Endotoxin and immune activation in chronic heart failure: a prospective cohort study [see comments]. - Niebauer,J.; Volk,H.D.; Kemp,M.; Dominguez,M.; Schumann,R.R.; Rauchhaus,M.; Poole-Wilson,P.A.; Coats,A.J.; Anker,S.D. (Lancet, 1999)