About the Authors
Department of Medical and Health Sciences, Faculty of Health Science, Linköping University, Linköping, Sweden
Department of Internal Medicine, Motala Hospital, Motala, Sweden
The authors have declared that no competing interests exist.
Analyzed the data: FHN HG HF CJ. Wrote the paper: HF CJ FHN HG. Developed and organized the overall research plan: FHN. Developed the original study idea: HG. Participated in the design of the study details: HG BB UR. Obtained data: HG HF CJ. Conducted the study hands-on, recruited patients: BB UR HF CJ. Performed analyses of hormones: HF CJ. Read and approved the final manuscript: FHN HG BB UR HF CJ.