Comment on a letter written by Ribeiro DA ''Risk assessment of oral cancer in patients with pre-cancerous states of the oral cavity using micronucleus test and challenge assay'' [Saran R, Tiwari RK, Reddy PP, Ahuja YR. Oral Oncol 2008;44:354-60]
Oral Oncol. 2011 Aug;47(8):777-8.
doi: 10.1016/j.oraloncology.2011.01.007.
Epub 2011 Feb 12.