Medical Imaging Department Faculty of Health Sciences University of Abomey Calavi Cotonou Republic of Benin;
Regional and Teaching Hospital of Borgou/Medical Imaging Department Faculty of Medicine University of Parakou Parakou Republic of Benin;
Regional and Teaching Hospital of Borgou/Medical Imaging Department Faculty of Medicine University of Parakou Parakou Republic of Benin;
Medical Imaging Department Faculty of Health Sciences University of Abomey Calavi Cotonou Republic of Benin;
Rheumatology Department Faculty of Health Sciences University of Abomey Calavi Cotonou Republic of Benin;
Regional and Teaching Hospital of Borgou/Medical Imaging Department Faculty of Medicine University of Parakou Parakou Republic of Benin;
Medical Imaging Department Faculty of Health Sciences University of Abomey Calavi Cotonou Republic of Benin;
Rheumatology Department Faculty of Health Sciences University of Abomey Calavi Cotonou Republic of Benin;
Medical Imaging Department Faculty of Health Sciences University of Abomey Calavi Cotonou Republic of Benin;
Medical Imaging Department Faculty of Health Sciences University of Abomey Calavi Cotonou Republic of Benin;
Rheumatoid Arthritis; Ultrasound; Erosions; Synovitis; Cotonou;