References
- Hunt JN. Biochem J 1948; 42: 104–109
- Berstad A. Scand J Gastroenterol 1970; 5: 343–348
- Anson ML, Mirsky AE. J Gen Physiol 1932; 16: 59–63
- Sivakumaran T, de Gara CJ, Walker WHC, Silletti C, Burget DW, Hunt RH. Clin Chem 1984; 30(9)1582–1583
- Whitecross DP, Piper DW. Scand J Gastroenterol 1975; 10: 395–399
- Roberts NB, Taylor WH. Biochem J 1978; 169: 607–615
- Gray SP, Billings JA. Clin Chem 1983; 29: 447–451
- Berstad A. Scand J Gastroenterol 1970; 5: 525–527
- Schiffrin MJ, Warren AA. Am J Dig Dis 1942; 9: 205–209
- Driver RL, Chappell RH, Carmichael EB. Am J Dig Dis 1945; 12: 166–167
- Alphin RS, Vokal VA, Gregory RL, Bolton PN, Tawes JW. Gastroenterology 1977; 73: 495–500