[1] King Georges Med Univ, Dept Oral Pathol & Microbiol, Lucknow, Uttar Pradesh, India
[2] Banaras Hindu Univ, Inst Sci, Dept Biochem, Varanasi, Uttar Pradesh, India
[3] Univ Sheffield, Acad Unit Oral & Maxillofacial Med & Pathol, Sch Clin Dent, Sheffield, S Yorkshire, England
[4] Indian Inst Toxicol Res, CSIR, Syst Toxicol & Hlth Risk Assessment, Lucknow, Uttar Pradesh, India