[1] Shadan Inst Med Sci, Teaching Hosp & Res Ctr, Dept Gen Surg, Hyderabad 500086, Andhra Prades, India
[2] Noble Hosp, Hyderabad, Andhra Prades, India
[3] Shadan Inst Med Sci, Teaching Hosp & Res Ctr, Hyderabad 500086, Andhra Prades, India
[4] Dr VRK Womens Med Coll, Dept Pathol, Aziz Nagar, Andhra Prades, India