title: Familial occurrence of HTLV-I--associated myelopathy.
mesh_terms: D000328:Adult; D006800:Deltaretrovirus Infections / Q000235:genetics*; D005260:Female; D006801:Humans; D008297:Male; D009128:Muscle Spasticity / Q000235:genetics; D010264:Paraplegia / Q000235:genetics*