Symptom Information: Sort according to HPO 

1
 (HPO:0000252) Microcephaly Very frequent [Orphanet] 832 / 7739
2
 (HPO:0001276) Hypertonia Very frequent [Orphanet] 317 / 7739
3
 (HPO:0001939) Abnormality of metabolism/homeostasis Very frequent [Orphanet] 328 / 7739
4
 (HPO:0002120) Cerebral cortical atrophy Very frequent [Orphanet] 187 / 7739
5
 (HPO:0012443) Abnormality of brain morphology Frequent [Orphanet] 45 / 7739
6
 (HPO:0012758) Neurodevelopmental delay Very frequent [Orphanet] 949 / 7739