Symptom Information: Sort according to HPO 

1
(HPO:0001263) Global developmental delay 853 / 7739
2
(HPO:0001298) Encephalopathy 72 / 7739
3
(HPO:0001344) Absent speech 57 / 7739
4
(HPO:0002069) Generalized tonic-clonic seizures 96 / 7739
5
(HPO:0002123) Generalized myoclonic seizures 62 / 7739
6
(HPO:0002521) Hypsarrhythmia 43 / 7739
7
(HPO:0002880) Respiratory difficulties 15 / 7739
8
(HPO:0011968) Feeding difficulties 240 / 7739