by O'Brien, H A, Horton, M A
Published in Scandinavian journal of haematology (01.11.1983)

by Jacob, Elizabeth, O'Brien, H. A. W.
Published in Journal of clinical pathology (01.04.1972)

by Cox, N H, O'Brien, H A
Published in Clinical and experimental dermatology (01.01.1994)

by Jacob, Elizabeth, O'Brien, H. A. W.
Published in Journal of clinical pathology (01.04.1972)

by Jacob, E, O'Brien, H A, Mollin, D L
Published in Scandinavian journal of haematology (01.08.1977)

by Horton, M.A., O'Brien, H.A.W.
Published in Blood (01.12.1983)