1. Mueller C, Müller B, Perruchoud AP. Biomarkers: past, present, and future. Swiss Med Wkly. 2008;138:225–229.
2. The National Institute of Mental Health Strategic Plan. NIMH, 2007, p. 37. http://www.nimh.nih.gov/about/ strategic-planning-reports/index.shtml
3. Harrigan GG. Metabolomics: a ‘systems’ contribution to pharmaceutical discovery and drug development. Drug Discov World. 2006; Available at: http://www.ddw-online.com/data/pdfs/metabolomics.pdf . Accessed June 27, 2007.
4. Harrison PM, Kumar A, Lang N, et al. A question of size: the eukaryotic proteome and the problems in defining it. Nucleic Acids Res. 2002; 30:1083–1090.
5. Dettmer K, Hammock BD. Metabolomics — a new exciting field within “omics” sciences. Environ Health Perspect. 2004; 112:A396–A397.