Additional file 1: of Association between severity of periodontitis and clinical activity in rheumatoid arthritis patients: a case–control study Beatriz Rodríguez-Lozano Jerián González-Febles Jorge Garnier-Rodríguez Shashi Dadlani Sagrario Bustabad-Reyes Mariano Sanz Fernando Sánchez-Alonso Carlos Sánchez-Piedra Enrique González-Dávila Federico Díaz-González 10.6084/m9.figshare.7608299.v1 https://springernature.figshare.com/articles/journal_contribution/Additional_file_1_of_Association_between_severity_of_periodontitis_and_clinical_activity_in_rheumatoid_arthritis_patients_a_case_control_study/7608299 Periodontal section. (DOC 25 kb) 2019-01-18 05:00:00 Rheumatoid arthritis Periodontitis Disease activity