**Atomic Absorption Spectroscopy: Fundamentals and Applications in Medicine**

José Manuel González-López1, Elena María González-Romarís2, Isabel Idoate-Cervantes3 and Jesús Fernando Escanero4 *1Miguel Servet University Hospital, Clinical Biochemistry Service, Zaragoza 2Galician Health Service, Clinical Laboratory, Santiago de Compostela 3Navarra Hospital Complex, Clinical Laboratory, Pamplona 4University of Zaragoza, Faculty of Medicine, Department of Pharmacology and Physiology, Zaragoza Spain* 
