1. Two cases of the 18-trisomy syndrome, one in combination with an XXY karyotype;Haylock;Hum Chromos Lett,1963
2. Double aneuploidy: trisomy-18 and Klinefelter’s syndrome;Cohen;Am J Dis Child,1967
3. Double trisomy and double trisomic mosaicism;Zellweger;Am J Dis Child,1967
4. Klinefelter’s syndrome with mosaicism trisomy-18;Henchman;Aust Paediatr J,1970
5. Une observation de double aneuploidie chromosomique: trisomie 18 et XXY];Bach;Ann Génét,1973