1. Haemoglobin and ferritin concentrations in infants;Emond, A.M.; Hawkins, N.; Pennock, C.;Arch Dis Child; months of age,1996
2. Laboratory diagnosis of iron deficiency;Dallman, P.R.; Reeves, J.,1984
3. haematocrit and red blood cell count in 'capillary' (skin-prick) blood compared to venous blood in children;Haemoglobin, Moe P.J.;Acta Paediatr Scand,1970
4. Unacceptable variability of haemoglobin estimation on samples obtained from ear punctures;Coburn, T.J.; Miller, W.V.; Parrill, W.D.;Transfusion,1977
5. Venous and skinpuncture blood counts compared;Bellamy, G.J.; Hinchliffe, R.F.;Clin Lab Haematol,1988