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Nicotinic acid, C5H4NCOOH

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Niacin, C6H5NO2

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Nicotinic acid, C5H4NCOOH

Null result in nicotinamide (vitamin B3) skin cancer trial of organ-transplant recipients

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59-67-6, Niacin, Wikipedia.org, niacin, Bionic, Vitamin B3, Pyridine-3-carboxylic acid