Gender biases in Spanish rheumatology: Perception and facts Concepción Delgado Beltrán; Isabel Castrejón; Blanca Hernández-Cruz; Maria Luz García Vivar; Rosario García de Vicuña; Montserrat Romera Baures; Patricia Carreira; Esperanza Naredo; Delia Reina; María Galindo; Cilia Peralta; Blanca Varas de Dios; Loreto Carmona;

Education and Use of Lung Ultrasound in Rheumatology and Pneumology in Spain: A SER-SEPAR Survey Fredeswinda Romero-Bueno; María Jesús Rodríguez-Nieto; Esperanza Naredo;

Safety in the use of ultrasound in rheumatology during the COVID-19 pandemic. Spanish Society of Rheumatology positioning paper Lucía Mayordomo; Juan Molina Collada; Félix M. Francisco Hernández; Ángel Bueno; Santos A. Insua Vilariño; Francisco Gabriel Jiménez-Núñez; Rosalía Martínez Pérez; Ingrid Möller; Jacqueline Usón Jaeger; José Francisco García-Llorente; José M. Álvaro-Gracia; Eduardo Aparicio Ruiz; Liliana Asaro Daverio; Esperanza Naredo;