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Marrero JM, de Caestecker JS, Corbishley CM, McCormick C, Northfield TC.Marrero JM, et al. Among authors: northfield tc.Cancer. 1996 Jan 1;77(1):19-24. doi: 10.1002/(SICI)1097-0142(19960101)77:1<19::AID-CNCR5>3.0.CO;2-I.Cancer. 1996.PMID: 8630929
Savalgi RS, Corbishley CM, Caygill C, Hill M, Cook MG, Kirkham JS, Northfield TC.Savalgi RS, et al. Among authors: northfield tc.Lancet. 1990 Aug 18;336(8712):413-6. doi: 10.1016/0140-6736(90)91954-9.Lancet. 1990.PMID: 1974951
Goggin PM, Collins DA, Jazrawi RP, Jackson PA, Corbishley CM, Bourke BE, Northfield TC.Goggin PM, et al. Among authors: northfield tc.Gut. 1993 Dec;34(12):1677-80. doi: 10.1136/gut.34.12.1677.Gut. 1993.PMID: 8282254Free PMC article.