Daniel Calle1, Viviana Negri2, Arisbel Cerpa3, Pilar Lpez-Larrubia1, Paloma Ballesteros2, Sebastin Cerdn1
1Departamento de Modelos Experimentales Humanos, Instituto de Investigaciones Biomdicas "Alberto Sols", CSIC, Madrid, Spain; 2Laboratory of Organic Synthesis and Molecular Imaging by Magnetic Resonance, Faculty of Sciences, UNED, Madrid, Spain; 3Universidad Europea de Madrid, Madrid, Spain