title: Response to Dr. Rutten's comment on "Serum magnesium and not vitamin D is associated with better QoL in COPD: A cross-sectional study".
authors.affiliation: Department of Respiratory Diseases, Aarhus University Hospital, Aarhus, Denmark. Electronic address: sarsuri@hotmail.com.
authors.forename: Sarah Hashim Ali
authors.initials: SH
authors.lastname: Hussein
authors.affiliation: Department of Clinical Pharmacology, Aarhus University Hospital, Aarhus, Denmark.
authors.forename: Lars Peter
authors.initials: LP
authors.lastname: Nielsen
authors.affiliation: Department of Respiratory Diseases, Aarhus University Hospital, Aarhus, Denmark.
authors.forename: Mette Konow Bøgebjerg
authors.initials: MK
authors.lastname: Dolberg
authors.affiliation: Allergy Centre, Odense University Hospital, Odense, Denmark.
authors.forename: Ronald
authors.initials: R
authors.lastname: Dahl
mesh_terms: D002118:Calcium / Q000097:blood*; D005260:Female; D006801:Humans; D008274:Magnesium / Q000097:blood*; D008297:Male; D029424:Pulmonary Disease, Chronic Obstructive / Q000097:blood*; D014807:Vitamin D / Q000097:blood*
chemical_list: D014807:Vitamin D; D008274:Magnesium; D002118:Calcium