Symptom Information: Sort according to HPO 

1
 (HPO:0000252) Microcephaly Frequent [Orphanet] 832 / 7739
2
 (HPO:0000256) Macrocephaly Frequent [Orphanet] 298 / 7739
3
 (HPO:0000496) Abnormality of eye movement Very frequent [Orphanet] 79 / 7739
4
 (HPO:0000708) Behavioral abnormality Frequent [Orphanet] 212 / 7739
5
 (HPO:0001250) Seizures Frequent [Orphanet] 1245 / 7739
6
 (HPO:0001252) Muscular hypotonia Very frequent [Orphanet] 990 / 7739
7
 (HPO:0001276) Hypertonia Frequent [Orphanet] 317 / 7739
8
 (HPO:0002167) Neurological speech impairment Frequent [Orphanet] 308 / 7739
9
 (HPO:0002066) Gait ataxia Very frequent [Orphanet] 327 / 7739
10
 (HPO:0100022) Abnormality of movement Frequent [Orphanet] 129 / 7739