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Pfizer's own clinical trials diversity page acknowledges the underlying problem the initiative was built to address: Black Americans make up roughly 13% of the US population but only 5% of clinical trial participants ( [106] ), a gap consistent with the SCRS oncology-specific survey figure cited earlier and with the Health Affairs finding of one-third proportional enrollment
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The other nine amino acids are essential and must be supplied by the diet
doi: 66
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