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APA Citation
Schmidt‐Hansen, M., Cameron, S., Lord, J., & Hasler, E. (2020). initiation of abortion before there is definitive ultrasound evidence of intrauterine pregnancy: A systematic review with meta‐analyses. Acta obstetricia et gynecologica Scandinavica, 99, 451–458. http://access.bl.uk/ark:/81055/vdc_100102670513.0x00005f