Comment on

• Isolation of rare circulating tumour cells in cancer patients by microchip technology.

  Nagrath S, Sequist LV, Maheswaran S, Bell DW, Irimia D, Ulkus L, Smith MR, Kwak EL, Digumarthy S, Muzikansky A, Ryan P, Balis UJ, Tompkins RG, Haber DA, Toner M. Nagrath S, et al. Nature. 2007 Dec 20;450(7173):1235-9. doi: 10.1038/nature06385. Nature. 2007. PMID: 18097410 Free PMC article.