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