Symptom Information: Sort according to HPO 

1
(HPO:0000478) Abnormality of the eye Very frequent [Orphanet] 126 / 7739
2
(HPO:0001250) Seizures Very frequent [Orphanet] 1245 / 7739
3
(HPO:0001252) Muscular hypotonia Very frequent [Orphanet] 990 / 7739
4
(HPO:0002066) Gait ataxia Very frequent [Orphanet] 327 / 7739
5
(HPO:0007370) Aplasia/Hypoplasia of the corpus callosum Very frequent [Orphanet] 180 / 7739
6
(HPO:0012758) Neurodevelopmental delay Very frequent [Orphanet] 949 / 7739