Wald N, Stone R, Cuckle H S, Grudzinskas J G, Barkai G, Brambati B, Teisner B, Fuhrmann W
Department of Environmental and Preventive Medicine, Wolfson Institute of Preventive Medicine, Medical College of St Bartholomew's Hospital, London.
BMJ. 1992 Jul 4;305(6844):28. doi: 10.1136/bmj.305.6844.28.