Moncrieff, G., Finlayson, K., Cordey, S., McCrimmon, R., Harris, C., Barreix, M., …Downe, S. (2021). First and second trimester ultrasound in pregnancy: A systematic review and metasynthesis of the views and experiences of pregnant women, partners, and health workers. PLOS ONE, 16(12), Article e0261096. https://doi.org/10.1371/journal.pone.0261096