Comorbidity burden in terms of disability in patients with osteoarthritis in Mexico. The IMPACTAR registry David Vega-Morales; Jorge Antonio Esquivel-Valerio; Brenda Roxana Vázquez-Fuentes; Alejandro Díaz-Borjón; César Alejandro Arce-Salinas; Everardo Álvarez-Hernández; José Fernando Torres-Roldán; José Manuel Aguilera-Zepeda; Víctor Toledo-Infanson; Ernesto Alcántar-Luna; Jorge Antonio Aldrete-Velasco; José Luis Martínez Hernández; Jaime José Gutiérrez-Gómez; Rolando Espinosa-Morales;

Safety and survival associated with biologic therapies: first report of the Biobadaguay on the Paraguayan-Uruguayan registry of adverse events with biologic therapies Paloma de Abreu; Gabriela Ávila-Pedretti; Zoilo Morel; María Isabel Acosta; Sonia Cabrera-Villalba; Patricia Melgarejo; Marcos Franco; Pedro Delgadillo; Lourdes Román; Juan Gabriel Elizaur; Ernesto Paredes; Darwin Octavio Cordobilla; Daniel Palleiro; Miguel Albanese; Julio Mazzoleni;

Major cardiovascular events associated factors in a cohort of patients with rheumatoid arthritis Pedro Arbey Quevedo Mayorga; Jhon Sebastián Giraldo; Jhon Jairo Tipasoca Pineda; Cristhian Camilo Guzmán Gualteros; Julián Esteban Romero; Isabel Cristina Gonzalez; Maria Camila Hernandez; Viviana Carolina Pachón; Daniel Sarmiento;