Measurement of steroid hormones in hair samples

BACKGROUND Based at the University of Bristol, the Avon Longitudinal Study of Parents and Children (ALSPAC), is a world-leading birth cohort study. More than 14,000 pregnant women were recruited into the study between April 1991 and December 1992. These women, the children arising from the pregnancy and now also their grandchildren have been followed up in detail ever since. ALSPAC is one of the most detailed studies of its kind in the world, providing the international research community with a rich resource for t...