| Description | Correspondence between Penrose and Aakesson regarding Aakesson's research into Down's syndrome and Klinefelter syndrome, with the enclosed articles "Siblings of sex chromatin-positive males", H Aakesson and G Hambert; "Consanguineous marriages and mongolism", by H Aakesson and H Khesson; "Risk figures in mental deficiency", by H Aakesson, and a list of Aakesson's publications.Also included is correspondence between Penrose and Bengt Gustafsson, regarding references for the Swedish Medical Research Council. |