“…By June 1, 1973, 400 patients had been admitted to the programme, the breast cancer group numbering 81; these latter are reported in this paper. For comparison, and especially to show the relationship between response to treatment and individual characteristics of the neoplasm, studies by the first author with hypophysectomy and norethisterone acetate (NEA) (SH 420, Schering Chemicals) are quoted (Edelstyn et al, 1958;Edelstyn, Gleadhill and Lyons, 1968;Edelstyn, 1973). As the criteria for patient inclusion and assessment were identical and carried out in the same unit, we believe this comparison to be of value.…”