Ravi Kant Singh, Santosh K. Mishra, Narendra Kumar, Ajay K.Singh (2010). Assessment of DNA Damage by Comet Assay in Lymphocytes of Workers Occupationally Exposed to Petroleum fumes. International Journal of Genetics, 2 (1), 18-22. http://dx.doi.org/10.9735/0975-2862.2.1.18-22