Symptom Information: Sort according to HPO 

1
(HPO:0000654) Decreased light- and dark-adapted electroretinogram amplitude 17 / 7739
2
(HPO:0001252) Muscular hypotonia 990 / 7739
3
(HPO:0001324) Muscle weakness 859 / 7739
4
(HPO:0001249) Intellectual disability 1089 / 7739
5
(HPO:0001263) Global developmental delay 853 / 7739
6
(HPO:0001270) Motor delay 322 / 7739
7
(HPO:0002355) Difficulty walking 61 / 7739
8
(HPO:0002359) Frequent falls 24 / 7739
9
(HPO:0003200) Ragged-red muscle fibers 37 / 7739
10
(HPO:0003487) Babinski sign 179 / 7739
11
(HPO:0007098) Paroxysmal choreoathetosis 6 / 7739
12
(HPO:0008947) Infantile muscular hypotonia 482 / 7739
13
(HPO:0010547) Muscle flaccidity 466 / 7739
14
(OMIM) Muscle biopsy shows ragged red fibers 4 / 7739
15
(OMIM) Lesions in the caudate and putamen 1 / 7739