Abstract:Purpose: We describe a novel syndrome in seven female patients with extreme developmental delay and neoteny. Methods: All patients in this study were female, aged 4 to 23 years, were well below the fifth percentile in height and weight, had failed to develop sexually, and lacked the use of language. Karyotype and array chromosome genomic hybridization analysis failed to identify large-scale structural variations. To further understand the underlying cause of disease in these patients, whole-genome sequencing w… Show more
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