About the Authors

Iain Bressendorff

iain@bressendorff.com

Affiliation Department of Cardiology, Nephrology and Endocrinology, North Zealand Hospital, Hillerød, Denmark

Lisbet Brandi

Affiliation Department of Cardiology, Nephrology and Endocrinology, North Zealand Hospital, Hillerød, Denmark

Morten Schou

Affiliation Department of Cardiology, Herlev and Gentofte Hospital, Herlev, Denmark

Birgitte Nygaard

Affiliation Department of Medicine, Roskilde Hospital, Roskilde, Denmark

Niels Erik Frandsen

Affiliation Department of Medicine, Roskilde Hospital, Roskilde, Denmark

Knud Rasmussen

Affiliation Department of Medicine, Roskilde Hospital, Roskilde, Denmark

Lars Ødum

Affiliation Department of Clinical Biochemistry, Roskilde Hospital, Roskilde, Denmark

Ove Vyff Østergaard

Affiliation Department of Medicine, Roskilde Hospital, Roskilde, Denmark

Ditte Hansen

Affiliation Department of Medicine, Roskilde Hospital, Roskilde, Denmark

Competing Interests

DH has received funding for other research projects from Abbott Laboratories A/S. D3 Pharmacy delivered the study medication. There are no patents, products in development or marketed products to declare. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: BN NEF LB KR OVO LO DH. Performed the experiments: BN NEF LO DH. Analyzed the data: IB DH. Contributed reagents/materials/analysis tools: OVO LO. Wrote the paper: IB LB MS BN NEF KR OVO LO DH.