title: [Two siblings with familial spastic paraplegia associated with decreased levels of factor XII].
mesh_terms: D000293:Adolescent; D005175:Factor XII Deficiency / Q000235:genetics*; D005260:Female; D006801:Humans; D008297:Male; D009128:Muscle Spasticity / Q000235:genetics; D010264:Paraplegia / Q000235:genetics*