Ethical Approval

This is an observational study. The AIIMS, JODHPUR Research Ethics Committee has confirmed that no ethical approval is required.

Consent for Publication

Not applicable.

Informed Consent

Not applicable.

Competing Interests

Dr Althaf K Majeed, Dr Om Kumar Yadav, Dr Sameer Taywade, Dr Rajesh Kumar and Dr Arjun Singh Sandhu declare that they have no competing interests.