I remember somewhere that the word limitation for variable name in Stata is 12, and I try with esttab and it shows the same thing. My code is

Code:
esttab m1 m2 m3 m4 m5 m6 m7 ,star(* 0.1 ** 0.05 *** 0.01) nomtitles ar2 p title(" Just titley") keep($ccccovariates) coeflab(wFIRM_SIZE  "Firm
>  size"  LNGDP "Ln(GDP)" UNEMPLOYMENT "Unemployment"  wTANGIBILITY "Tangibility" wLAG_SAL_GRO "Lag(sale growth)" )
And it shows that

Array
I am wondering is there any way to come over this issue? If not, I may only shorten the variable name.
Thanks in advance