Authors:
Ballas, SK
Marcolina, MJ
Dover, GJ
Barton, FB
Citation: Sk. Ballas et al., Erythropoietic activity in patients with sickle cell anaemia before and after treatment with hydroxyurea, BR J HAEM, 105(2), 1999, pp. 491-496
Citation: Ds. Fong et al., Impaired color vision associated with diabetic retinopathy: Early treatment diabetic retinopathy study report no. 15, AM J OPHTH, 128(5), 1999, pp. 612-617