title: Correction for covariates.
authors.forename: O R
authors.initials: OR
authors.lastname: Madsen
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging / Q000502:physiology*; D001172:Arthritis, Rheumatoid / Q000503:physiopathology; D015519:Bone Density / Q000502:physiology*; D015986:Confounding Factors, Epidemiologic; D006801:Humans; D008875:Middle Aged; D012107:Research Design; D013718:Tensile Strength / Q000502:physiology*