Symptom Information: Sort according to HPO 

1
(HPO:0001250) Seizures Frequent [Orphanet] 1245 / 7739
2
(HPO:0002536) Abnormal cortical gyration Frequent [Orphanet] 72 / 7739
3
(HPO:0002066) Gait ataxia Very frequent [Orphanet] 327 / 7739
4
(HPO:0001608) Abnormality of the voice Frequent [Orphanet] 126 / 7739
5
(HPO:0002093) Respiratory insufficiency Very frequent [Orphanet] 410 / 7739
6
(HPO:0001276) Hypertonia Very frequent [Orphanet] 317 / 7739
7
(HPO:0011420) Death Very frequent [Orphanet] 184 / 7739
8
(HPO:0011025) Abnormality of cardiovascular system physiology Frequent [Orphanet] 41 / 7739