Tetrasomy 21 is an extremely rare autosomal anomaly resulting from the presence of 4 copies of chromosome 21, characterized by features of trisomy 21 including developmental delay/intellectual disabil...
Comprehensive, easy-to-understand information about this condition
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Kisho delivers this disease record via API, including phenotypes (HPO), genes, orphan drug designations, screening status, and PAG mapping, with version history and governance.