Symptom Information: Sort according to HPO 

1
(HPO:0000252) Microcephaly Frequent [Orphanet] 832 / 7739
2
(HPO:0001276) Hypertonia Very frequent [Orphanet] 317 / 7739
3
(HPO:0001315) Reduced tendon reflexes Very frequent [Orphanet] 160 / 7739
4
(HPO:0001561) Polyhydramnios Frequent [Orphanet] 191 / 7739
5
(HPO:0001608) Abnormality of the voice Very frequent [Orphanet] 126 / 7739
6
(HPO:0002353) EEG abnormality Very frequent [Orphanet] 188 / 7739
7
(HPO:0002514) Cerebral calcification Very frequent [Orphanet] 89 / 7739
8
(HPO:0012758) Neurodevelopmental delay Very frequent [Orphanet] 949 / 7739
9
(HPO:0011420) Death Very frequent [Orphanet] 184 / 7739