Armstrong-Buisseret, Lindsay K, Haslam, Shonagh, James, Tim, Bradshaw, Lucy, Heazell, Alexander EP, "Verification of placental growth factor and soluble-fms-like tyrosine kinase 1 assay performance in late pregnancy and their diagnostic test accuracy in women with reduced fetal movement", Annals of Clinical Biochemistry: International Journal of Laboratory Medicine, 2020