LIMITATIONS
The limitations of this study include:
  1. Inability to be registered with systematic review databases such as PROSPERO
  2. Due to rapidly evolving data, figures quoted are those written at the time of constructing this manuscript
  3. Grey literature and clinical trials couldn’t be added because of scarcity of data
  4. Technical reports and perspective reports couldn’t undergo risk bias assessment and hence qualitative reporting was done.
  5. The guidelines were not evaluated because of the exhaustive process and time constraints