Symptom Information: Sort according to HPO 

1
(HPO:0001249) Intellectual disability 1089 / 7739
2
(HPO:0001250) Seizures 1245 / 7739
3
(HPO:0001336) Myoclonus 115 / 7739
4
(OMIM) Prenatal onset seizures 1 / 7739
5
(OMIM) Generalized hypertony 1 / 7739
6
(OMIM) Reflex myoclonus 1 / 7739
7
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739
8
(HPO:0001522) Death in infancy 275 / 7739