Symptom Information: Sort according to HPO 

1
(HPO:0000486) Strabismus 576 / 7739
2
(HPO:0000639) Nystagmus 555 / 7739
3
(HPO:0001250) Seizures 1245 / 7739
4
(HPO:0001252) Muscular hypotonia 990 / 7739
5
(HPO:0001324) Muscle weakness 859 / 7739
6
(HPO:0001263) Global developmental delay 853 / 7739
7
(HPO:0001266) Choreoathetosis 57 / 7739
8
(HPO:0001347) Hyperreflexia 363 / 7739
9
(HPO:0001371) Flexion contracture 220 / 7739
10
(HPO:0002104) Apnea 106 / 7739
11
(HPO:0002187) Intellectual disability, profound 44 / 7739
12
(HPO:0002191) Progressive spasticity 12 / 7739
13
(HPO:0002415) Leukodystrophy 30 / 7739
14
(HPO:0003487) Babinski sign 179 / 7739
15
(HPO:0005484) Postnatal microcephaly 32 / 7739
16
(HPO:0008872) Feeding difficulties in infancy 153 / 7739
17
(OMIM) Shallow breathing 3 / 7739
18
(HPO:0011968) Feeding difficulties 240 / 7739
19
(HPO:0008947) Infantile muscular hypotonia 482 / 7739
20
(HPO:0010547) Muscle flaccidity 466 / 7739
21
(OMIM) No head control 2 / 7739
22
(OMIM) MRI shows no normal myelination 1 / 7739
23
(OMIM) Leukodystrophy, hypomyelinating 3 / 7739
24
(OMIM) Intermittent increase of urinary ethylmalonic acid 1 / 7739
25
(OMIM) Serum lactate may be increased during encephalopathic exacerbations 1 / 7739
26
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739
27
(HPO:0003623) Neonatal onset 22 / 7739