(R)-glycerate + NAD(+) => 3-hydroxypyruvate + NADH + H(+)
(r)-glycerate + nad(+) => 3-hydroxypyruvate + nadh + h(+)
(R)-glycerate + NAD(+) => 3-hydroxypyruvate + NADH + H(+)
(r)-glycerate + nad(+) => 3-hydroxypyruvate + nadh + h(+)