Gall Stones and Tamoxifen

Hi 

I was diagnosed with BC just over 6 years ago.  I took Tamoxifin for 5 years.  Today I was diagnosed with Gall Stones.  Decided to do a bit of research and came across a number of articles on possible links between Tamoxifin and Gall Stones.  The articles I found we not that recent, latest being 2004.  

I would really like to access current research, if any out there, but feeling a tad bit ill to research further atm.  

Does anybody know of any recent research linking or not linking the two?  I'd appreciate any feedback.