R. Stone

First trimester concentrations of pregnancy associated plasma protein A and placental protein 14 in Down's syndrome.

J. Grudzinskas, N. Wald, H. Cuckle, 1992, BMJ.

Dehydroepiandrosterone sulphate in Alzheimer's disease

H. Cuckle, T. Chard, F. Leblhuber, 1990, The Lancet.

Prevention of neural tube defects: Results of the Medical Research Council Vitamin Study

M. Gnant, J. Densem, C. Frost, 1991, The Lancet.

First‐trimester amniotic fluid and extraembryonic coelomic fluid acetylcholinesterase electrophoresis

N. Wald, N. Wathen, R. Stone, 1992, Prenatal diagnosis.