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. 1961 Oct 28;2(7209):964.
doi: 10.1016/s0140-6736(61)90799-1.

Obstetric analgesia. The use of a fixed nitrous oxide and oxygen mixture from one cylinder

M E TUNSTALL

Obstetric analgesia. The use of a fixed nitrous oxide and oxygen mixture from one cylinder

M E TUNSTALL. Lancet. .
No abstract available

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