An assessment of the oxygen tensions obtained with pre-mixed 50 per cent nitrous oxide and oxygen mixture (Entonox) used for pain relief
- PMID: 4515578
- DOI: 10.1111/j.1365-2044.1973.tb00497.x
An assessment of the oxygen tensions obtained with pre-mixed 50 per cent nitrous oxide and oxygen mixture (Entonox) used for pain relief
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