Symptom Information: Sort according to HPO 

1
(HPO:0000238) Hydrocephalus Very frequent [Orphanet] 24954637 IBIS 278 / 7739
2
(HPO:0001250) Seizures Occasional [Orphanet] 1245 / 7739
3
(HPO:0001276) Hypertonia Very frequent [Orphanet] 317 / 7739
4
(HPO:0001288) Gait disturbance Very frequent [Orphanet] 24954637 IBIS 318 / 7739
5
(HPO:0001347) Hyperreflexia Very frequent [Orphanet] 363 / 7739
6
(HPO:0002017) Nausea and vomiting Very frequent [Orphanet] 134 / 7739
7
(HPO:0002167) Neurological speech impairment Very frequent [Orphanet] 308 / 7739
8
(HPO:0002251) Aganglionic megacolon Occasional [Orphanet] 78 / 7739
9
(HPO:0002410) Aqueductal stenosis Very frequent [Orphanet] 19 / 7739
10
(HPO:0003202) Skeletal muscle atrophy Occasional [Orphanet] 281 / 7739
11
(HPO:0004374) Hemiplegia/hemiparesis Very frequent [Orphanet] 158 / 7739
12
(HPO:0002315) Headache Very frequent [Orphanet] 175 / 7739
13
(HPO:0100851) Abnormal emotion/affect behavior Very frequent [Orphanet] 85 / 7739
14
(HPO:0001172) Abnormality of the thumb Frequent [Orphanet] 24954637 IBIS 103 / 7739
15
(HPO:0012758) Neurodevelopmental delay Very frequent [Orphanet] 949 / 7739
16
(HPO:0001274) Agenesis of corpus callosum 24954637 IBIS 142 / 7739
17
(HPO:0001181) Adducted thumb 24954637 IBIS 31 / 7739
18
(HPO:0002362) Shuffling gait 24954637 IBIS 13 / 7739
19
(HPO:0002381) Aphasia 24954637 IBIS 27 / 7739
20
(HPO:0001249) Intellectual disability 24954637 IBIS 1089 / 7739