1. Studies of genetic malformation/retardation syndromes. Proc II Int Congr Int Assoc Sci Study Ment Defic;Opitz;Warsaw, Polish Med Publ,1971
2. Diagnostic/genetic studies in severe mental retardation;Kaveggia;Proc II Int Congr Int Assoc Sci Study Ment Defic. Warsaw, Polish Med Publ,1971
3. Chromosome studies in malformation/retardation syndromes;Pallister;Proc II Int Congr Int Assoc Sci Study Ment Defic, Warsaw, Polish Med Publ,1971
4. The FG syndrome;Opitz;Zschr Kinderhlk,1974