External validation of the 2017 ACR/EULAR classification criteria for inflammatory myopathies in a Mexican cohort: Role of autoantibodies in the diagnosis and classification of patients with inflammatory myopathies Grisel Guadalupe Sánchez-Mendieta, David Vega-Morales, Miguel Ángel Villarreal-Alarcón, Jesús Eduardo Compean-Villegas, Ilse Andrea Moreno-Arquieta, Dionicio Ángel Galarza-Delgado

Diagnostic challenge: Bethlem myopathy mimicking inflammatory myopathy Olga Rusinovich-Lovgach, Luz Morán, Oscar Toldos-Gonzalez, Marta Vaquero Martínez, Borja Cabal-Paz, José Luis Andréu Sánchez

Transcultural adaptation and validation of the Transition Readiness Assessment Questionnaire (TRAQ) into Mexican Spanish Sara G. Rosiles-De la Garza, Ingris Pelaez-Ballestas, Fernando García-Rodríguez, Ana V. Villarreal-Treviño, Elisa L. Dávila-Sotelo, Leonor G. Hinojosa-Amaya, Jesús E. Treviño-Alvarado, Óscar González-Llano, Laura Villarreal-Matínez, Yajaira V. Jiménez-Antolínez, Julia E. Colunga-Pedraza, Nadina E. Rubio-Pérez