1. Bioanalysis Research Group; IMIM, Hospital del Mar; Doctor Aiguader 88 08003 Barcelona Spain
2. Department of Biological Chemistry and Molecular Modelling; Institute of Advanced Chemistry of Catalonia, Spanish Council for Scientific Research (IQAC-CSIC); Jordi Girona 18-26 08034 Barcelona Spain
3. Dept Química and Servei de Ressonància Magnètica Nuclear; Universitat Autònoma de Barcelona; Bellaterra Spain
4. Department of Experimental and Health Sciences; Universitat Pompeu Fabra; Doctor Aiguader 88 08003 Barcelona Spain