Heterozygosity for homocystinuria in premature peripheral and cerebral occlusive arterial disease - Boers, G H; Smals, A G; Trijbels, F J; Fowler, B; Bakkeren, J A; Schoonderwaldt, H C; Kleijer, W J; Kloppenborg, P WC (N Engl J Med, 1985)