Biological therapy optimization in patients with psoriasis by reducing the dose or increasing the time interval, in a specialized centre in Colombia Juan Raúl Castro-Ayarza; Mario Barbosa-Rengifo; Manuel Franco-Franco; Julio Roberto Amador; Paola Cárdenas-Rojas; Carolina Becerra-Arias; Jorge Donado-Gómez; Natalia Duque-Zapata;

Frequency of ANA and ANA/DFS70 in patients diagnosed with psoriasis compared with healthy population and its association with disease severity Daniela Marín-Acevedo; Omar-Javier Calixto; Luis A. Castro; Julio Amador; Pedro López; Diana Acero-Molina; Consuelo Romero-Sánchez;

Validation of the Toronto Psoriatic Arthritis Screening 2 (TOPAS-2) questionnaire in an Argentinian population Hernán Maldonado Ficco; Rodolfo Pérez Alamino; Marina N. Fornaro; Andrea L. Coronel Ale; Emilce E. Schneeberger; Paula Kohan; Silvia Papasidero; Alejandro Benítez; María Celina de la Vega; María de los Ángeles Correa; Margarita Landi; Gustavo Citera;