Symptom Information: Sort according to HPO 

1
(HPO:0000666) Horizontal nystagmus 32 / 7739
2
(HPO:0002268) Paroxysmal dystonia 11 / 7739
3
(HPO:0002356) Writer's cramp 16 / 7739
4
(HPO:0007104) Prolonged somatosensory evoked potentials 1 / 7739
5
(HPO:0007332) Hemifacial seizures 1 / 7739
6
(OMIM) Seizures, partial, often hemifacial 1 / 7739
7
(OMIM) Seizures, generalized, may occur 1 / 7739
8
(OMIM) Paroxysmal dystonia, exercise-induced 1 / 7739
9
(OMIM) EEG shows rolandic sharp waves and spikes 1 / 7739
10
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739
11
(HPO:0003593) Infantile onset 249 / 7739