title: Introduction special issue.
authors.affiliation: Novartis Pharma AG, Basel, SWITZERLAND.
authors.forename: Michaela
authors.initials: M
authors.lastname: Kneissel
authors.affiliation: Institutes for BioMedical Research (NIBR), Cambridge, MA UNITED STATES.
authors.forename: David
authors.initials: D
authors.lastname: Glass
mesh_terms: D000818:Animals; D006801:Humans; D009141:Musculoskeletal System / Q000378:metabolism* / Q000473:pathology / Q000503:physiopathology