Tarp, Jakob http://orcid.org/0000-0002-9186-7077
Hansen, Bjørge Herman
Fagerland, Morten Wang
Steene-Johannessen, Jostein
Anderssen, Sigmund Alfred
Ekelund, Ulf
Article History
Received: 5 November 2019
Accepted: 9 March 2020
First Online: 14 March 2020
Ethics approval and consent to participate
: The National Center for Health Statistics Research Ethics Review Board approved the NHANES 03–04 (Protocol #98–12) and NHANES 05–06 cycles (Protocol #2005–06). Participants gave informed consent.
: Not applicable.
: The authors declare that they have no competing interests.