The abstract to the study can be seen for free here:
http://www.jpeds.com/article/S0022-3...656-8/abstract
Eclipse is right - they stopped testing at 96 hours. So the take home message should have read "for the constituents tested, breastmilk refridgerated for at least 4 days is pretty much the same as when first pumped." Seems strange that they didn't keep on testing - I would have wanted to see how long it can go!

I have to request the article, but I'll stop back once I've read the whole study.