to run regression using loop

Hi, i am trying to run this following regression (engle granger ecm) on all the panel units.

egranger ln_TX_R ln_REER ln_RGDP_P gfc gfc_ln_RGDP_P if ifs_code==111, trend ecm

could you pls help me with the code, and how do i present a table out of a coefficient, let's say, of "ln_REER" for all the panel units?

thanks!