Symptom Information: Sort according to HPO 

1
(HPO:0001250) Seizures Very frequent [Orphanet] 1245 / 7739
2
(HPO:0001622) Premature birth Frequent [Orphanet] 100 / 7739
3
(HPO:0001249) Intellectual disability 1089 / 7739
4
(HPO:0001263) Global developmental delay 853 / 7739
5
(HPO:0000924) Abnormality of the skeletal system 114 / 7739
6
(HPO:0001302) Pachygyria 60 / 7739
7
(HPO:0002069) Generalized tonic-clonic seizures 96 / 7739
8
(HPO:0007069) Profound static encephalopathy 1 / 7739
9
(HPO:0007270) Atypical absence seizures 3 / 7739
10
(HPO:0100702) Arachnoid cyst 15 / 7739
11
(OMIM) Cortical simplification 1 / 7739
12
(OMIM) Subcortical nodular lesions in perivascular white matter 1 / 7739
13
(HPO:0012758) Neurodevelopmental delay Very frequent [Orphanet] 949 / 7739
14
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739