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"L-Carnitine-supplementation in advanced pancreatic cancer (CARPAN)--a randomized multicentre trial." Nutr J 11: 52

This is where your handling protocol becomes the single most important factor in the success of your research

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Randomized controlled trial of sulforaphane and metabolite discovery in children with Autism Spectrum Disorder

found that using vitamin E (100 mg/day during the follicular and luteal phases of the cycle) did not result in significant improvements in ovulation induction, clinical pregnancy, or ongoing pregnancy rates in infertile women with PCOS (149)