Hardisty BE and Cassill DL. (2010) Memes and the ecological niche. Biological Theory 5(2):1-3.
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ivonne:
Happy B-Day honey ! 

son_of_a_duck:
That really sucks. I can't even imagine the pain involved with a broken knee cap. It's uncomfortable enough when they move out of place. The goal of this surgery was to clean out some cartilage debris and hopefully postpone arthritis for a little while. So fingers crossed that works out.