“…Jeffrey (1953b), in a search for prognostic factors which might indicate whether the anaemia in any given case was likely to respond to intravenous iron, was unable to derive any material help from assessment of many clinical and laboratory features of the disease. Another group of workers (Kuhns, Gubler, Cartwright, and Wintrobe, 1950) stated that the anaemia and hypoferraemia of rheumatoid arthritis were not appreciably influenced by intravenous iron.…”