Clinical pattern of motor neuron disease seen in younger age groups in Madras.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007194:India; D008297:Male; D013118:Spinal Cord Diseases / Q000175:diagnosis* / Q000453:epidemiology