{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,26]],"date-time":"2025-09-26T00:17:29Z","timestamp":1758845849937,"version":"3.44.0"},"reference-count":20,"publisher":"BMJ","issue":"7","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Clin Pathol"],"published-print":{"date-parts":[[1970,10]]},"abstract":"<jats:p>A technique has been developed for accurately assaying serum and urine <jats:sup>57<\/jats:sup>Co cyanocobalamin during the conventional Schilling test. Serum and urine radioactivity in a large number of patients has been correlated and the precise normal limits have been determined by statistical analysis. The implications of this for investigating conditions other than pernicious anaemia and the malabsorption syndromes are stressed.<\/jats:p>","DOI":"10.1136\/jcp.23.7.558","type":"journal-article","created":{"date-parts":[[2007,6,9]],"date-time":"2007-06-09T00:50:46Z","timestamp":1181350246000},"page":"558-562","source":"Crossref","is-referenced-by-count":5,"title":["An assessment of serum <sup>57<\/sup>Co cyanocobalamin as an index of vitamin B<sub>12<\/sub> absorption<sup>1<\/sup>"],"prefix":"10.1136","volume":"23","author":[{"given":"D.","family":"Donaldson","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B. J. N.","family":"Blight","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P. T.","family":"Lascelles","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[1970,10,1]]},"reference":[{"key":"ref_1","first-page":"32","article-title":"The reliability and test in primary malabsorptive disease and after partial gastrectomy","volume":"4","unstructured":"The reliability and test in primary malabsorptive disease and after partial gastrectomy. Gat, 4, 32-36.","journal-title":"Gat"},{"key":"ref_2","first-page":"67","article-title":"Reproducibility and reliability of the Schilling test","volume":"58","author":"Adams, J.F.; Seaton, D.A.","year":"1961","unstructured":"Adams, J. F., and Seaton, D. A. (1961). Reproducibility and reliability of the Schilling test. J. Lab.clin. Med., 58, 67-75.","journal-title":"J. Lab.clin. Med"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1080\/00401706.1960.10489888","article-title":"Rejection of outliers","volume":"12","author":"Anscombe, F.J.","year":"1960","unstructured":"Anscombe, F. J. (1960). Rejection of outliers. Technonietrics, 12, 123-147.","journal-title":"Technonietrics"},{"issue":"709-7","key":"ref_4","first-page":"12","article-title":"absorption studies: comparison of \"Co vitamin B, Schilling test and \"'Covitamin B,., plasma level test","volume":"1","author":"Armstrong, B.K.; Woodliff, H1(1966)Vitamin B.","unstructured":"Armstrong, B. K.. and Woodliff, H1..(1966)V.itamin B, absorption studies: comparison of \"Co vitamin B, Schilling test and \"'Covitamin B,., plasma level test. Med. J. Alust., 1, 709-7 12.","journal-title":"Med. J. Alust"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"223","DOI":"10.1111\/j.1365-2141.1956.tb06695.x","article-title":"Plasma, tissue and urinary radioactivity after oral administration of vitamin B2","volume":"2","author":"C., Co-labJlled Booth C.; Mollin, D.L.","year":"1956","unstructured":"\"Co-labJlled Booth. C. C., and Mollin, D. L. (1956). Plasma, tissue and urinary radioactivity after oral administration of vitamin B2. Brit. J. Haentat., 2, 223-236.","journal-title":"Brit. J. Haentat"},{"key":"ref_6","article-title":"Plasma radioactivity after radioactive vitamin B, given orally","author":"Coupland, W.W.","year":"1966","unstructured":"Coupland, W. W. (1966). Plasma radioactivity after radioactive vitamin B, given orally."},{"key":"ref_7","article-title":"Vitamin B1, absorption in some neurological and neuroendocrine disorders","author":"T, P.","year":"1970","unstructured":"P. T. (1970).Vitamin B1, absorption in some neurological and neuroendocrine disorders."},{"key":"ref_8","article-title":"Radioactive vitamin B,. absorption studies: results of direct measure-","author":"Doscherholmen, A.; Hagen, P.S.","year":"1957","unstructured":"Doscherholmen, A., and Hagen, P. S. (1957). Radioactive vitamin B,. absorption studies: results of direct measure-"},{"year":"1966","author":"Forshaw, J.; absorption Harwood, L.","key":"ref_9","unstructured":"Forshaw, J., and absorption Harwood, L. (1966)."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"251","DOI":"10.1016\/0003-9861(54)90472-5","article-title":"Uptake of radioactive vitamin B, by the liver in humans: test for measurement of intestinal absorption of vitamin B1, and intrinsic factor activity","volume":"51","author":"Glass, G.B.J.; J., Boyd L.; Gellin, G.A.; Stephanson, L.","year":"1954","unstructured":"Glass, G. B. J., Boyd. L. J., Gellin, G. A., and Stephanson, L. (1954). Uptake of radioactive vitamin B, by the liver in humans: test for measurement of intestinal absorption of vitamin B1, and intrinsic factor activity. Arch. Biochenip., 51, 251-257.","journal-title":"Arch. Biochenip"},{"key":"ref_11","first-page":"209","article-title":"Elementarr Statistics","author":"Hoel, P.G.","year":"1967","unstructured":"Hoel, P. G. (1967). Elementarr Statistics, 3rd ed., ch. 9, p. 209. Wiley, New York.","edition":"3rd ed."},{"key":"ref_12","article-title":"The detection of intestinal absorption of","author":"McCurdy, P.R.","year":"1965","unstructured":"McCurdy, P. R. (1965). The detection of intestinal absorption of"},{"key":"ref_13","first-page":"966","article-title":"Comparison of the urinary excretion and 8 hour plasma tests for vitamin B., absorption","volume":"68","author":"McIntyre, P.A.; Wagner, H.N.","year":"1966","unstructured":"McIntyre, P. A., and Wagner, H. N. (1966). Comparison of the urinary excretion and 8 hour plasma tests for vitamin B., absorption. J. Lab. clin. Med., 68, 966-971.","journal-title":"J. Lab. clin. Med"},{"key":"ref_14","first-page":"50","article-title":"Application of whole-body gamma spectrometry to vitamin B1, absorption","volume":"42","author":"Meyer, B.J.; Jansen, C.R.; Van der Merwe, C.J.; Oosthuizen, S.F.","year":"1968","unstructured":"Meyer, B. J., Jansen, C. R., Van der Merwe, C. J., and Oosthuizen, S. F. (1968). Application of whole-body gamma spectrometry to vitamin B1, absorption. S. Afr. med. J., 42, 50-52.","journal-title":"S. Afr. med. J"},{"year":"1961","author":"P., of; Cohn, vitamin B1; H, S.","key":"ref_15","unstructured":"P., of and Cohn, vitamin B1, S. H. (1961)."},{"key":"ref_16","article-title":"The validity of the the intestinal absorption of","author":"Blood, M.","year":"1967","unstructured":"Blood, M. (1967). 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