- Correspondence to Dr José M Álvaro-Gracia, Hospital Universitario de La Princesa, Unidad de Terapias Biológicas, Servicio de Reumatología, IIS-IP, Madrid 28006, Spain;
- Received November 18, 2015
- Accepted May 17, 2016
- First published June 7, 2016.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.