I'm trying to subscribe to the Biophysical Journal RSS feed via The Old Reader.
There are a couple of RSS sources to work with (curiously, but not related to this question directly, the feed by Cell.com doesn't show the latest issue, but the one from MedWorm and the one I created via a PubMed search do).
But when I add any of those to The Old Reader, I only see the top ten items, even though there are 20 in the Cell.com one, and 50 in the PubMed one. This actually happens in Feedly too.
Other feeds, such as Scientific Reports, show up entirely.
How can I get The Old Reader to recognize more than the top 10 items for the Biophysical Journal as well?