title: Preface.
authors.affiliation: Department of Endocrinology and Metabolism, Academic Medical Center, University of Amsterdam, 1105 AZ, The Netherlands. Electronic address: e.fliers@amc.uva.nl.
authors.forename: Eric
authors.initials: E
authors.lastname: Fliers
authors.affiliation: Department of Endocrinology and Metabolism, Academic Medical Center, University of Amsterdam, 1105 AZ, The Netherlands.
authors.forename: Andries
authors.initials: A
authors.lastname: Kalsbeek
mesh_terms: D004734:Energy Metabolism / Q000502:physiology*; D006801:Humans; D007031:Hypothalamus / Q000378:metabolism*