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Schiller LR, Santa Ana CA, Porter J, Fordtran JS.Schiller LR, et al.Gastroenterology. 1997 May;112(5):1529-35. doi: 10.1016/s0016-5085(97)70034-9.Gastroenterology. 1997.PMID: 9136831
Lee E, Schiller LR, Vendrell D, Santa Ana CA, Fordtran JS.Lee E, et al. Among authors: schiller lr.Gastroenterology. 1992 Dec;103(6):1790-6. doi: 10.1016/0016-5085(92)91436-8.Gastroenterology. 1992.PMID: 1451972
Schiller LR, Bilhartz LE, Santa Ana CA, Fordtran JS.Schiller LR, et al.Gastroenterology. 1990 Apr;98(4):1036-43. doi: 10.1016/0016-5085(90)90031-u.Gastroenterology. 1990.PMID: 2311860