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A feasibility study of prenatal diagnosis of beta thalassaemia in a northern Italian population has been carried out. Twenty-five families have been studied, each consisting of two parents and a homozygous beta thalassaemia child, thus enabling linkage analysis of restriction fragment length polymorphisms (RFLPs) to the normal and the thalassaemic chromosomes. Using seven standard RFLPs, 19/25 families could be offered prenatal diagnosis; inclusion of the recently described Ava II psi beta polymorphism increased this figure to 23/25 (92%) of the families.

Type

Journal article

Journal

Br J Haematol

Volume

62

Pages

495 - 500