In our research work at the lab,
We are getting positive results,
But just for one gene we get them.

TFF3, the sole positive expression,
TFF1 & TFF2 expressions're -ve,
But we will try another tissue now.

We just tried the umbilical cord yet,
Now I have suggested more,
We now need two more tissues.

TFF1 or sP2, may well be extracted,
Purified from the intestinal tissue,
And its expression maybe seen...

TFF2 or sP1, may well be extracted,
Purified from the spleen tissues,
For its expression to be seen...