Received: 9 April 2019
Accepted: 24 July 2019
First Online: 21 August 2019
Ethics approval and consent to participate
: Ethical approval was not necessary for immunoglobulin testing at our institution as all such tests were requested as part of routine care of the patients. The patients were enrolled in a study of serological markers of disease activity in SLE, ethical approval was granted by the South Glasgow and Clyde Research Ethics Committee, Glasgow, Scotland. Written consent was received from the patients.
: Not applicable.
: The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.