1. An isochromosome of the short arms of the no;Balíček;18 chromosome in a mentally retarded girl. Clin. Genet.,1976
2. The supernumerary isochromosome 18 syndrome (+18pi);Condron;Birth Defects: Original Article Series,1974
3. IgA deficiency associated with partial deletion of chromosome 18;Feingold;J. clin. Invest.,1968
4. Immune imbalance in dysgammaglobulinaemia Type IV;Hobbs;Lancet,1968
5. A mentally retarded male with karyotype 47,XY,+mar =?i(18p);Nielsen;Ann. Génét.,1974