1 NOVA Medical School Universidade Nova de Lisboa, Lisbon, Portugal; Rheumatology Department, Hospital Egas Moniz, Lisbon, Portugal.
2 Rheumatology Department, Unidade Local de Saúde do Alto Minho, Ponte de Lima, Portugal.
3 Portuguese Society of Rheumatology.
4 Rheumatology Department, Centro Hospitalar e Universitário de Coimbra EPE (CHUC), Coimbra, Portugal; Nursing Research Unit of CHUC, Health Sciences Research Unit: Nursing (UICiSA:E), Nursing School of Coimbra (ESEnfC), Coimbra, Portugal.