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epidural
ˌɛpɪˈdjʊər(ə)l/Submit
Adjective - ANATOMY
on or around the dura mater, in particular (of an anaesthetic) introduced into the space around the dura mater of the spinal cord.
subdural
sʌbˈdjʊər(ə)l/Submit
adjective - ANATOMY
situated or occurring between the dura mater and the arachnoid membrane of the brain and spinal cord.
There were two major threads …
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