Lipid oxidation products have opposite effects on calcifying vascular cell and bone cell differentiation. A possible explanation for the paradox of arterial calcification in osteoporotic patients - Parhami, F; Morrow, A D; Balucan, J; Leitinger, N; Watson, A D; Tintut, Y; Berliner, J A; Demer, L L (Arterioscler Thromb Vasc Biol, 1997)