Ravi Mehrotra1
, Anurag Gupta2
, Mamta Singh3
and Rahela Ibrahim4 
1
Associate Professor Department of Pathology, Moti Lal Nehru Medical College, Allahabad, India
2
Postgraduate Student Department of Pathology, Moti Lal Nehru Medical College, Allahabad, India
3
Professor and Head Department of Pathology, Moti Lal Nehru Medical College, Allahabad, India
4
Research Fellow Department of Pathology, Moti Lal Nehru Medical College, Allahabad, India