| Phenotype details |
see paper; ..., developmental delay; hypotonia and/or muscle weakness; no other neurologic findings; history of poor height growth; history of poor weight gain; feeding difficulties; dysmorphic craniofacial features (eyes, cupped, asymmetric, low set, hypoplastic ears with bilateral preauricular pits, broad nasal root, ankyloglossia); no endocrine features; respiratory features; ophthalmologic features; no cardiac features; gastrointestinal features |