1. Owen, 1950 Shamma'a and Benedict, 1958 Jones, 1961
2. Chisholm et al., 1971a
3. post-cricoid webs and post-cricoid carcinoma, but the mechanism whereby iron deficiency brings about these changes is as yet unknown; genetic, environmental and perhaps immunological factors may also be important;deficiency
4. Simple achlorhydric anaemia, Plummer-Vinson syndrome, and carcinoma of the mouth, pharynx and oesophagus in women;AHLBOM, H.E.;British Medical Journal,1936
5. A follow-up study of patients with post-cricoid webs;CHISHOLM, M.; ARDRAN, G.M.; CALLENDER, S.T.; WRIGHT, R.;Quarterly Journal of Medicine,1971