Symptom Information: Sort according to HPO 

1
(HPO:0000737) Irritability 93 / 7739
2
(HPO:0000817) Poor eye contact 26 / 7739
3
(HPO:0001263) Global developmental delay 853 / 7739
4
(HPO:0002187) Intellectual disability, profound 44 / 7739
5
(HPO:0002476) Primitive reflex 9 / 7739
6
(HPO:0002521) Hypsarrhythmia 43 / 7739
7
(HPO:0011097) Epileptic spasms 45 / 7739
8
(HPO:0011398) Central hypotonia 12 / 7739
9
(OMIM) Seizures, infantile onset 4 / 7739
10
(OMIM) Lack of speech development 20 / 7739
11
(OMIM) Inability to hold head 1 / 7739
12
(HPO:0001252) Muscular hypotonia 990 / 7739
13
(HPO:0001324) Muscle weakness 859 / 7739
14
(HPO:0008947) Infantile muscular hypotonia 482 / 7739
15
(HPO:0010547) Muscle flaccidity 466 / 7739
16
(OMIM) Inability to walk independently 4 / 7739
17
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739
18
(HPO:0200134) Epileptic encephalopathy 42 / 7739