Authors: Wallace, EM D'Antona, D Veveris-Lowe, T Crossley, JA Barnard, R

Citation: Em. Wallace et al., Growth hormone binding protein in normal and aneuploid pregnancy: a paradoxical decrease in trisomy 18, BR J OBST G, 108(7), 2001, pp. 701-703

Authors: Spencer, K Aitken, DA Crossley, JA

Citation: K. Spencer et al., Maternal serum total hCG and free beta-hCG in the first trimester from trisomy 21 pregnancies, PRENAT DIAG, 20(9), 2000, pp. 770-771

Authors: Spencer, K Berry, E Crossley, JA Aitken, DA Nicolaides, KH

Citation: K. Spencer et al., Is maternal serum total hCG a marker of trisomy 21 in the first trimester of pregnancy?, PRENAT DIAG, 20(4), 2000, pp. 311-317

Authors: Crossley, JA Aitken, DA

Citation: Ja. Crossley et Da. Aitken, Deriving risks of Down's syndrome from nuchal translucency measurements, ULTRASOUN O, 14(6), 1999, pp. 438-438

Authors: Aitken, DA Ireland, M Berry, E Crossley, JA Macri, JN Burn, J Connor, JM

Citation: Da. Aitken et al., Second-trimester pregnancy associated plasma protein-A levels are reduced in Cornelia de Lange syndrome pregnancies, PRENAT DIAG, 19(8), 1999, pp. 706-710

Authors: Spencer, K Crossley, JA Green, K Worthington, DJ Brownbill, K Aitken, DA

Citation: K. Spencer et al., Second trimester levels of pregnancy associated plasma protein-A in cases of trisomy 18, PRENAT DIAG, 19(12), 1999, pp. 1127-1134