Koolen, D A; Sharp, A J; Hurst, J A; Firth, H V; Knight, S J L; Goldenberg, A; Saugier-Veber, P; Pfundt, R; Vissers, L E L M; Destrée, A; Grisart, B; Rooms, L; Van der Aa, N; Field, M; Hackett, A; Bell, K; Nowaczyk, M J M; Mancini, G M S; Poddighe, P J; Schwartz, C E