title: Response to the authors.
authors.affiliation: Center for Primary Care Research, Lund University/Region Skåne, Malmö, Sweden. Electronic address: bengt.zoller@med.lu.se.
authors.forename: Bengt
authors.initials: B
authors.lastname: Zöller
authors.affiliation: Department of Clinical Sciences, Lund University, Clinical Research Center (CRC), Entrance 72, house 60, level 13, Skåne University Hospital, SE 205 02 Malmö, Sweden.
authors.forename: Olle
authors.initials: O
authors.lastname: Melander
authors.affiliation: Department of Clinical Sciences, Lund University, Clinical Research Center (CRC), Entrance 72, house 60, level 13, Skåne University Hospital, SE 205 02 Malmö, Sweden; Department of Coagulation Disorders, Skåne University Hospital, Malmö, Sweden.
authors.forename: Peter
authors.initials: P
authors.lastname: Svensson
authors.affiliation: Department of Clinical Sciences, Lund University, Clinical Research Center (CRC), Entrance 72, house 60, level 13, Skåne University Hospital, SE 205 02 Malmö, Sweden.
authors.forename: Gunnar
authors.initials: G
authors.lastname: Engström
mesh_terms: D004909:Erythrocyte Indices / Q000502:physiology*; D004912:Erythrocytes / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D054556:Venous Thromboembolism / Q000097:blood*