[Characteristics of the frequency of initial symptoms in intramedullar tumors of the spinal cord].
D005260:Female; D006801:Humans; D008297:Male; D013120:Spinal Cord Neoplasms / Q000175:diagnosis*
Kharakteristika chastoty nachal'nykh simptomov pri intramedulliarnykh opukholiakh spinnogo mozag.