Need for early, minimally invasive cancer diagnosis

We have read the article in PNAS by Mittal et al. (1) and would like to congratulate the authors on an excellent piece of work demonstrating spectroscopy’s capability for accurately subtyping epithelial cells and the tumor-associated microenvironment. Herein, we would like to add some insight and to comment on how this work could take the field forward. In their recent paper, Mittal et al. (1) employ a high-definition Fourier transform infrared imaging method using … [↵][1]1To whom correspondence should be addressed. Email: mparaskevaidi{at}uclan.ac.uk. [1]: #xref-corresp-1-1