1. Heterozygous beta-thalassaemia in pregnancy;Cooley;J Reprod Med,1984
2. Blood disorders in pregnancy;Whitfield,1981
3. Blood volume, haematinics, anaemia;Letsky,1984
4. Folic acid in the management of beta-thalassaemia minor during pregnancy;Hedge;J Obstet Gynaecol Br Commonw,1974
5. Nutritional anaemias;World Health Organisation;Technical report series,1972