Symptom Information: Sort according to HPO 

1
(HPO:0001252) Muscular hypotonia Very frequent [Orphanet] 990 / 7739
2
(HPO:0001315) Reduced tendon reflexes Very frequent [Orphanet] 160 / 7739
3
(HPO:0002093) Respiratory insufficiency Very frequent [Orphanet] 410 / 7739
4
(HPO:0003457) EMG abnormality Very frequent [Orphanet] 78 / 7739
5
(HPO:0001387) Joint stiffness Very frequent [Orphanet] 322 / 7739
6
(HPO:0030089) Abnormal muscle fiber protein expression Very frequent [Orphanet] 64 / 7739