References
- Ippolito A, Elashoff J, Valenzuela J, Cano R, Frankl H, Samloff M, Koretz R. Gastroenterology 1983; 85: 875–880
- Berstad A, Aadland E, Bjerke K, Carlsen E. Scand J Gastroenterol 1981; 16: 933–936
- Strom M, Gotthardt R, Bodemar G, Walan A. Scand J Gastroenterol 1981; 16: 593–602
- Ippolito A, Elashoff J, Cooney 0, Sturdevant R. Gastroenterology 1978; 74: 1074
- Marks IN, Lucke W, Wright JP, Girdwood AH. J Clin Gastroenterol 1981; 3: 163–165, Suppl 2
- Martin DF, Hollanders D, May SJ, Ravenscroft MM, Tweedle DEF, Miller JP. Lancet 1981; 1: 7–10
- Lee FI, Samloff IM, Hardman M. Lancet 1985; 1: 1299–1301
- Hallerbäck B, Anker-Hansen O, Carling L, Glise H, Kagevi I, Solhaug J-H, Svedberg L-E, Wählby L. Gut 1986; 27: 778–783
- Glise H, Carling L, Hallerbäck B, Kagevi I, Solhaug J-H, Svedberg L-E, Wählby L. Scand J Gastroenterol 1986; 21: 313–320
- Svedberg L-E, Carling L, Glise H, Hallerbäck B, Kagevi I, Solhaug J-H, Wählby L. Dig Dis Sci, (in press)
- Maxwell AE. Analyzing qualitative data. Methuen, London 1961
- Mantel N. J Am Statist Assoc 1963; 58: 690–700
- Korman MG, Hansky J, Eaves ER, Schmidt GT. Gastroenterology 1983; 85: 871–874
- Hull DH, Beale PJ. Gut 1985; 26: 1333–1337
- Konturek SJ, Radecki T, Piastucki I, Drozdowicz D. Scand J Gastroenterol 1986; 21: 6–10, Suppl 122