Salinas , María, Maite López-Garrigós, Julián Díaz, Mario Ortuño, Martin Yago, Begoña Laíz, Arturo Carratala, Virtudes Chinchilla, Goizane Marcaida, Enrique Rodriguez-Borja, Angel Esteban, Marcos Guaita, Cristina Aguado, Miguel A. Lorente, Emilio Flores, and Joaquín Uris. “Regional Variations in Test Requiring Patterns of General Practitioners in Spain”. Upsala Journal of Medical Sciences 116, no. 4 (November 9, 2011): 247–251. Accessed April 1, 2026. https://ujms.net/index.php/ujms/article/view/6058.