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APA Citation
Iversen, L., Fielding, S., Lidegaard, Ø., Mørch, L. S., Skovlund, C. W., & Hannaford, P. C. (2018). association between contemporary hormonal contraception and ovarian cancer in women of reproductive age in Denmark: prospective, nationwide cohort study. BMJ, 362, . http://access.bl.uk/ark:/81055/vdc_100150407647.0x00002c