“…[Butler and Claireaux, 1962; Welch and Cooke, 1962; Scott and Patterson, 1966; Passarge et al, 1968; ten Kate and Anders, 1970; Feingold, 1971; Harberg et al, 1976; Thomas et al, 1976; Crane, 1979; David et al, 1979; Pollack and Hall, 1979; Arad et al, 1980; Wolff, 1980; Gencik et al, 1982; Norio et al, 1984; Czeizel and Kovacs, 1985; Lipson and Williams, 1985; Toriello et al, 1985; Bocian et al, 1986; Toriello et al, 1986; Farag et al, 1989; Hitch et al, 1989; Carmi et al, 1990; Frey et al, 1991; Sripathi and Beasley, 1992; Narayan et al, 1993; Farag et al, 1994; Gibbs et al, 1997; Mitchell et al, 1997; Kufeji and Crabbe, 1999; Manouvrier‐Hanu et al, 2000]. As part of our own research over the last 5 years, we ascertained more than two dozen multiplex families in whom the diagnosis of a syndrome was not established.…”