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Dyfyniad Arddull ChicagoHawkes, David. "Extraordinary Claims Don’t Always Require Extraordinary Evidence, but They Do Require Good Quality Evidence." Asian Pac J Cancer Prev 2019.
Dyfyniad MLAHawkes, David. "Extraordinary Claims Don’t Always Require Extraordinary Evidence, but They Do Require Good Quality Evidence." Asian Pac J Cancer Prev 2019.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.