Please read these two Amazon reviews by Dr. Ronald W. Satz.
https://www.amazon.com/review/R3ED47NP2W1SKW/ref=cm_cr_rdp_perm
https://www.amazon.com/review/RHOINUIU197D8/ref=cm_cr_rdp_perm
Study the Reciprocal System and prove it for yourself! http://www.reciprocalsystem.guru
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