Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, 673027, India

Smily Sharma, Anoop Ayyappan, Apratim Roy Choudhury, Venkata Subbaih Arunachalam & Jineesh Valakkada

S.S. wrote the initial draft of manuscript text.

S.S., A.C., and V.A. prepared Fig. 1a and b.

A.A. and J.V. initiated the idea of the current work and critically revised the images and the text.

All the authors approved the final version of the article.

Correspondence to Jineesh Valakkada.