The People's League of Health Trial

Nethersole O. The People's League of Health: The Inception of the League. London: Metchim & Son, 1922

Chalmers I. Comparing like with like: some historical milestones in the evolution of methods to create unbiased comparison groups in therapeutic experiments. Int J Epidemiol 2001; 30: 1170–8

Theobald G.W. The effect of calcium and vitamins A and D on incidence of pregnancy toxæmia. Lancet 1937; 232: 1397–9

Olsen S.F. Electronic responses. The first clinical trial with true randomisation of individuals? eBMJ 1998; 317: 1220–3 [www.bmj.com/cgi/eletters/317/7167/1220]

Olsen S.F. Use of randomisation in early clinical trials. Theobald's trial in 1936 incorporated some aspects of randomisation. BMJ 1999; 318: 1352

People's League of Health. Nutrition of expectant and nursing mothers. Lancet 1942; 2: 10–12

People's League of Health. The nutrition of expectant and nursing mothers in relation to maternal and infant mortality and morbidity. J Obstet Gynaecol Br Emp 1946; 53: 498–509

People's League of Health. Nutrition of expectant and nursing mothers. BMJ 1942; 2: 77–8

Olsen S.F. , Secher N.J. A possible preventive effect of low-dose fish oil on early delivery and pre-eclampsia: indications from a 50-year-old controlled trial. Br J Nutr 1990; 64: 599–609