SynthesisThe Cochrane database of systematic reviews2010
Parenteral opioids for maternal pain relief in labour.
Roz Ullman et al.PubMed ↗Full text ↗Publisher ↗
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SynthesisThe Cochrane database of systematic reviews2010
Roz Ullman et al.PubMed ↗Full text ↗Publisher ↗
No numbers read from the abstract.