Antenatal thyrotropin releasing hormone trial

( Trial funding: European Union Biomed Programme, UK Medical Research Council, UCB Pharma

( Principal investigators: Diana Elbourne, Zarko Alfirevic, Peter Brocklehurst

( Trial steering committee: Belgium(J Rigo, G Santerre, H Thoumson; Denmark(G Greisen, N J Secher; France(O Claris, J Lepercq; Greece(H Dellagrammaticas; Ireland(W Prendiville; Netherlands(K Boer, J Kok; Portugal(A B Couceiro, L Januario; Spain(E Bataller, C Brotons, C Foradada; Switzerland(K Hildebrand; United Kingdom(Z Alfirevic, P Brocklehurst, R Cooke, D Elbourne, J Neilson, S Tansey, A Truesdale; MRC representative(A Grant; UCB Pharma representative(N Chatterjee

( Trial data monitoring committee: M Baum (chair), M Hannah, D Field, R Gray, L Mutch