an assessment of the benefits of prophylactic blood transfusion during 51 pregnancies in women with haemoglobin ss , haemoglobin sc and haemoglobin s-beta-thalassaemia in a retrospective study from 1978 to 1984 has failed to demonstrate any clear conclusions as to their efficacy .
C0002895
haemoglobin ss
C0019034
haemoglobin sc