Symptom Information: Sort according to HPO 

1
 (HPO:0002167) Neurological speech impairment Very frequent [Orphanet] 308 / 7739
2
 (HPO:0002360) Sleep disturbance Very frequent [Orphanet] 113 / 7739
3
 (HPO:0000510) Rod-cone dystrophy Occasional [Orphanet] 266 / 7739
4
 (HPO:0012758) Neurodevelopmental delay Very frequent [Orphanet] 949 / 7739
5
 (HPO:0011442) Abnormality of central motor function Very frequent [Orphanet] 76 / 7739