References
- Walt R, Katschinski B, Logan R, Ashley J, Lang-Man M. Lancet 1986; 1: 489–492
- Kurata J H, Haile B M, Elashoff J. D. Gastro-enterology 1985; 88: 96–100
- Kurata J H, Dubois R. S. Clin Pediatr (Phila) 1983; 22: 665–669
- Coggon D, Lambert P, Langman M. J. Lancet 1981; 1: 1302–1304
- Kurata J H, Haile B. M. Clin Gastroenterol 1984; 13: 289–307
- O'Connor P C, Griffiths K, Shanks R. G. Eur J Clin Pharmacol 1983; 24: 435–440
- Vogt I M, Johnson R. E. Am J Epidemiol 1980; 111: 713–720
- Sonnenberg A. Am J Epidemiol 1985; 122: 106–111
- Sonnenberg A. Scand J Gastroenterol 1985; 110: 11–24
- Sonnenberg A, Muller H, Pace F. J Chronic Dis 1985; 38: 309–317
- Watkins R M, Dennison A R, Collin J. Br J Surg 1984; 71: 774–776
- Sonnenberg A, Fritsch A. Gastroenterology 1983; 84: 1553–1557
- Elashoff J D, Grossman M. I. Gastroenterology 1980; 78: 280–285
- Bonnevie O. Dig Dis Sci 1985; 30: 8S–14S
- Taylor T. V. Br Med J 1985; 291: 653–654
- Sonnenberg A, Muller H. J Chronic Dis 1984; 37: 699–704
- Wara P, Berg V, Amdrup E. Acta Chir Scand 1983; 149: 775–785
- Wyllie J H, Clark C G, Alexander-Williams J, Bell P RF, Kennedy T L, Kirk R M, MacKay C. Lancet 1981; I: 1307–1308
- Fineberg H V, Pearlman L. A. Lancet 1981; 1: 1305–1307
- Preshaw R. M. Clin Invest Med 1985; 8: 62–67
- Blaxland C. J. Med J Aust 1984; 141: 681–682
- Negre J. Lancet 1985; 2: 1118–1119
- Watson R J, Hooper T L, Ingram G. Age Ageing 1985; 14: 225–229
- Kiaer T, Roin J, Djurhuus J, Niclassen S D, Bon-Nevie O. Scand J Gastroenterol 1985; 20: 1157–1162
- Kurata J H, Honda G D, Frankl H. Am J Public Health 1985; 75: 625–629
- Thompson W M, Ackerstein H. Alaska Med 1975; 17: 43–44
- Ostensen H, Gudmundsen T E, Bolz K D, Burhol P G, Bonnevie O. Scand J Gastroenterol 1985; 20: 189–192
- Ostensen H, Burhol P G, Bonnevie O, Bolz K. D. Scand J Gastroenterol 1982; 17: 1073–1076