Epidemiological and genetic study of 200 cases of oral cleft in the Emilia Romagna region of northern ItalyElisa Calzolari, Stefano Volpato, E. Gandini et al.|Teratology|1988Cited by 54
766 cases of oral cleft in ItalyMario Milan, Elisa Calzolari, Gianni Astolfi et al.|European Journal of Epidemiology|1994Cited by 26