Symptom Information: Sort according to HPO 

1
(HPO:0000253) Progressive microcephaly 37 / 7739
2
(HPO:0001250) Seizures 1245 / 7739
3
(HPO:0001263) Global developmental delay 853 / 7739
4
(HPO:0001298) Encephalopathy 72 / 7739
5
(HPO:0001336) Myoclonus 115 / 7739
6
(HPO:0001347) Hyperreflexia 363 / 7739
7
(HPO:0001508) Failure to thrive 454 / 7739
8
(HPO:0002020) Gastroesophageal reflux 101 / 7739
9
(HPO:0002063) Rigidity 92 / 7739
10
(HPO:0002093) Respiratory insufficiency 410 / 7739
11
(HPO:0002104) Apnea 106 / 7739
12
(HPO:0002126) Polymicrogyria 64 / 7739
13
(HPO:0002353) EEG abnormality 188 / 7739
14
(HPO:0006887) Intellectual disability, progressive 68 / 7739
15
(HPO:0007110) Central hypoventilation 6 / 7739
16
(HPO:0008872) Feeding difficulties in infancy 153 / 7739
17
(HPO:0008936) Muscular hypotonia of the trunk 77 / 7739
18
(HPO:0010864) Intellectual disability, severe 120 / 7739
19
(HPO:0011968) Feeding difficulties 240 / 7739
20
(OMIM) Encephalopathy, severe, neonatal 1 / 7739
21
(OMIM) Developmental delay, severe 13 / 7739
22
(OMIM) Hyperextension of the limbs 1 / 7739
23
(OMIM) Limb rigidity 1 / 7739
24
(OMIM) Dyskinetic movements 1 / 7739
25
(OMIM) Stereotypical movements 2 / 7739
26
(HPO:0001419) X-linked recessive inheritance 189 / 7739
27
(HPO:0003577) Congenital onset 133 / 7739