1. Effects of season and temperature on childhood plumbism;Baetjer, A.M.;Industr. Med. Surg,1959
2. The prevalence of pica;Barltrop, D.;Amer. J. Dis. Child,1966
3. The excretion of delta-aminolaevulinic acid by children;Barltrop, D.;Acta paediat. scand,1967
4. Lead poisoning in childhood;Barltrop, D.;Postgrad. med. J,1968
5. The detection of children abnormally exposed to lead;Barltrop, D.;Pediat. Dig,1969