http://pc.h12o.es/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3AHospital%20Universitario%2012%20de%20Octubre%2C%20and%20au%3AGuerra%20Vales%2C%20Juan%20Manuel%20and%20au%3ACosta%20P%C3%83%C2%A9rez-Herrero%2C%20Jos%C3%83%C2%A9%20Ram%C3%83%C2%B3n&format=rss2 Search results for 'Provider:Hospital Universitario 12 de Octubre, and au:Guerra Vales, Juan Manuel and au:Costa Pérez-Herrero, José Ramón' at 0 20