1. Clinical Laboratory , Hospital Universitario de San Juan , San Juan de Alicante , San Juan , Spain
2. Department of Biochemistry and Molecular Pathology , Universidad Miguel Hernandez , Elche , Spain
3. CIBER en Epidemiología y Salud Pública (CIBERESP) , Madrid , Spain
4. Department of Clinical Medicine , Universidad Miguel Hernandez , Muchamiel , Elche , Spain
5. Department of Radiology , University of Missouri , Columbia , MO , USA