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  • Clinical and cytogenetic aspects of the 21 deletion syndrome 

    Gericke, G. S.; Steyn, M. F.; Retief, A. E.; Thom, J. C.; Van Niekerk, W. A. (Health and Medical Publishing Group (HMPG), 1975)
    The clinical, cytogenetic and dermatoglyphic findings in a patient with a ring chromosome 21 are presented. This anomaly acts as a deletion of chromosomal material and results in specific congenital defects. A comparison ...