1 Department of Rheumatology, Centro Hospitalar E Universitário de Coimbra, Praceta Professor Mota Pinto, 3004-561, Coimbra, Portugal. anaisabel.cm@hotmail.com.
2 Department of Rheumatology, Centro Hospitalar E Universitário de Coimbra, Praceta Professor Mota Pinto, 3004-561, Coimbra, Portugal.
3 Department of Medical Genetic, Centro Hospitalar E Universitário de Coimbra, Coimbra, Portugal.
4 Faculty of Medicine, University of Coimbra, Coimbra, Portugal.