I think I read on a previous thread that some of you ordered a fact sheet about the strotium you take. Did anyone get a fact sheet about Dr. Best Strontium? Where does it come from. I'm hoping not anywhere like China. I thought I read someplace that someone said Strontium can interfere with some antibiotics, but I haven't found that on any of the sites yet. Any info from the fact sheet would be helpful. Thanks again for all your help.