DOI: 10.1055/s-00030576

Revista Brasileira de Ginecologia e Obstetrícia / RBGO Gynecology and Obstetrics

References

Tsui MHY, Ngan Kee WD, Ng FF, Lau TK.
A double blinded randomised placebo-controlled study of intramuscular pethidine for pain relief in the first stage of labour.

BJOG 2004;
111 (07) 648-655

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