A very comprehensive and thoughtful website that covers so many aspects of SPS is:
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This was put together by a person with SPS who clearly has some type of scientific background. It also has research footnotes if you want to explore further some of her topics.
Only registered and activated users can see links., Click Here To Register...
This was put together by a person with SPS who clearly has some type of scientific background. It also has research footnotes if you want to explore further some of her topics.
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