[1] KGMU, Lucknow, Uttar Pradesh, India
[2] Sanjay Gandhi Postgrad Inst Med Sci, Lucknow, Uttar Pradesh, India
[3] PMCH, Patna, Bihar, India
[4] DMCH, Darbhanga, India
[5] UPUMS, Etawah, India
[6] BHU, Varanasi, Uttar Pradesh, India
[7] Dr Ram Manohar Lohia Inst Med Sci, Lucknow, Uttar Pradesh, India