How can I get P-value for elasticity after QUAIDS?

[Bing Zhang]

Dear statalists:
I want to calculate compensated elasticity after using QUAIDS to estimate demand system.But I find that quaids in stata doesn't afford p-value.I wonder if you can give me some guides to solve this problem.
for an example:

use http://dasp.ecn.ulaval.ca/welcom/examples/ds/Mexico_2014_Cereals.dta , replace
quaids wcorn wwheat wrice wother wcomp, anot(9.5) prices(pcorn pwheat price pother pcomp)  expend(hh_current_inc)  demographics(sex educa2- educa7 age) 
****calculate compensated elasticity
estat compensated, atmeans stderrs
matrix list r(compelas)
****calculate stand errors of elasticity
matrix list r(sd)

****how can I get p-value of this elasticity?

Many thaks

[Zahra Almusalam]

Dear Bing Zhang
I am using Quaids to estimate demand system and I estimated both the elasticity compensated and uncompensated but failed to get the p-value. Kindly I would like to know if you solve this problem and get the p-value and will appreciate any help. Thanks alot.