How do I use MATLAB to retrieve youtube comments?

I've been trying to use MATLAB to retrieve comments from a youtube video. I can use the code below to get the most recent comments. How would I get all of the comments from a video?

urlread('https://gdata.youtube.com/feeds/api/videos/6Hd6cs0RbNs/comments/')

[Alberto]

Your code extract all content about comments. You should now parse it using regular expressions.