“…Elegant techniques for the aseptic delivery of suspected cases (Barnes et al, 1969) and for the fractionation of donor bone marrow grafts (Dicke et al, 1968) have been described and successful grafts have been achieved (Gatti et al, 1968;Koning et al, 1969). These seem beyond the income and facilities of ordinary hospitals, and it has been estimated that some 40 patients a year die untreated in the U.S.A. (F. S. Rosen, personal communication, 1971).…”