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Continuous extradural analgesia in labour using 'on demand' versus regular 'top-up' injections was evaluated, but the provided abstract contains no clinical results or findings.
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Purdy et al. (1987) studied this question. Continuous extradural analgesia in labour using 'on demand' versus regular 'top-up' injections was evaluated, but the provided abstract contains no clinical results or findings.
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