Pereira , J. and Porto-Figueira, P. and Cavaco, C. and Taunk , T. and Rapole , S. and Dhakne, R. and Nagarajaram , H. and Câmara , J.S. (2015) Breath analysis as a potential and non-invasive frontier in disease diagnosis: an overview. Metabolites, 5 (1). pp. 33-55. ISSN 5(1), 3-55;