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APA Citation
Toffol, E., But, A., Heikinheimo, O., Latvala, A., Partonen, T., & Haukka, J. (2020). associations between hormonal contraception use, sociodemographic factors and mental health: a nationwide, register-based, matched case–control study. BMJ open, 10(10), . http://access.bl.uk/ark:/81055/vdc_100127565734.0x000039