title: Reply to Mannacio et al.
authors: Department of Cardiothoracic Surgery, Leiden University Medical Center, Leiden, Netherlands c.l.i.gielen@lumc.nl.
authors: Chantal L I
authors: CL
authors: Gielen
authors: Department of Cardiothoracic Surgery, Leiden University Medical Center, Leiden, Netherlands.
authors: Eline F
authors: EF
authors: Bruggemans
authors: Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, Netherlands Sanquin Blood Bank, Leiden, Netherlands.
authors: Anneke
authors: A
authors: Brand
authors: Department of Cardiothoracic Surgery, Leiden University Medical Center, Leiden, Netherlands.
authors: Robert J M
authors: RJ
authors: Klautz
keywords: Blood loss; Coronary artery bypass; Platelet aggregation inhibitors; Surgical