Spastic paraplegia 4 (SPG4; also known as SPAST-HSP) is characterized by insidiously progressive bilateral decreased-limb gait spasticity. Greater than 50% of influenced persons have some weak spot from the legs and impaired vibration perception for the ankles.????? ??? ????? ???? ????.????? ???? ??? ??? ??? ???? ?????.??? ?? ??: ???? ??? ??? ? ?? … Read More