Hurrell A, Webster L, Sparkes J, Battersby C, et al. Repeat placental growth factor-based testing in women with suspected preterm
pre-eclampsia (PARROT-2): a multicentre, parallel-group, superiority, randomised
controlled trial. Lancet 2024 Feb 8:S0140-6736(23)02357-7. doi: 10.1016/S0140-6736(23)02357.
PMID: 38342128