[RESOLVED] remove letters

Hi,
There is a string such as:
string s = "12445-65432 abc, 98767-45364 th, 56749-23198"

How can I remove the letters so that I end up with:
s = "12445-65432, 98767-45364, 56749-23198"

Thanks

Code:

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string s = "12445-65432 abc, 98767-45364 th, 56749-23198";
string result = Regex.Replace(s, @"\s?[a-zA-Z]\s?", string.Empty);

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For a breakdown, have a read through on http://www.regular-expressions.info/reference.html. Brilliant author, very good read

Thank you