There are many physical advantages of administering a dual spinal epidural or walking epidural during childbirth like walking epidural uses smaller needles and a system for administering an anesthetic, it also permits the woman to move freely during labor, and it has fewer effects than a traditional epidural. The disadvantage is a walking epidural cost less to administer.
Answer:
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The answer to your question is,
Differentiate between similar tissues.
-Mabel <3