[Wlug] Perl puzzle

Hi. I've been spending far too much time trying to accomplish a (seemingly) simple thing: use a Perl substitution operation to replace, a comma followed by a space followed by a single double-quote with a single double-quote. The obvious s/, "/"/g doesn't work, nor does escaping the double-quotes, as in s/, \"/\"/g I must have tried dozens of variations. RE's can be tough at times. Late last night I had to admit defeat. Any ideas? Thanks, Doug