WAmyotrophic lateral sclerosis
WAutosomal dominant cerebellar ataxia
WCerebellar hypoplasia
WCohen-Gibson syndrome
WCongenital distal spinal muscular atrophy
WFazio–Londe disease
WFriedreich's ataxia
WHarding ataxia
WHuntington's disease
WJuvenile primary lateral sclerosis
WMachado–Joseph disease
WMotor neuron disease
WPrimary lateral sclerosis
WSpinal muscular atrophies
WSpinal muscular atrophy
WSpinal muscular atrophy with lower extremity predominance 1
WSpinal muscular atrophy with lower extremity predominance 2A
WSpinal muscular atrophy with lower extremity predominance 2B
WSpinal muscular atrophy with progressive myoclonic epilepsy
WSpinocerebellar ataxia
WSpinocerebellar ataxia type 1
WX-linked spinal muscular atrophy type 2