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KetoCharge Plus  where thousands of womenapplying for abortion were exposed to strictly controlled diagnosticultrasounds, Keto Charge Plus    after which the aborted fetuses were examined by variouslaboratory techniques. From these studies on humans, Professor Ruo Feng fromthe Institute of Keto Charge Plus Acoustics at the University of Nanjing, published theguidelines in 2000: "Commercial or educational ultrasound imaging of thefetus should be rigorously prohibited.

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https://www.mic.com/articles/40925/mead-treadwell-debunking-thinkprogress-ignorant-attacks-on-the-alaska-senate-candidate