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What disease is described by bilateral flaccid weakness of the upper limbs (lmn and bilateral spastic weakness of the lower limbs (umn) beginning at the cervical level of the spinal cord and progressing up or down the cord?

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1. What disease is described by bilateral flaccid weakness of the upper limbs (lmn and bilateral spastic weakness of the lower limbs (umn) beginning at the cervical level of the spinal cord and progressing up or down the cord?





 
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