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APA Citation
Lee, N., Leiser, B., Halter-Wehrli, Y., Mårtensson, L. B., Gao, Y., & Kildea, S. (2022). a comparison of two versus four sterile water injections for the relief of back pain in labour: A multicentre randomised equivalence trial. Women and birth, 35(6), e556–e562. http://access.bl.uk/ark:/81055/vdc_100168597635.0x000015