a ubiquinol + NAD(+) => a ubiquinone + NADH + H(+)
a ubiquinol + nad(+) => a ubiquinone + nadh + h(+)
a ubiquinol + NAD(+) => a ubiquinone + NADH + H(+)
a ubiquinol + nad(+) => a ubiquinone + nadh + h(+)