Chi-square for subsample

Hi all,
A snapshot of my data is below (I have 950 data points, so its only a small section). I am running a chi-square to test the frequency of each stage vs. country using the command below:

HTML Code:

tab stage1 country, chi2
tab stage2 country, chi2
tab stage3 country, chi2
tab stage4 country, chi2

Now I'd like to compare only certain countries for each stage. How would I run a test, for example, to compare stage1 for country "1" and "3" only to see if there is a significant difference?
TIA

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