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D. Boerma, E. A. Rauws, Y. C. Keulemans, I. M. Janssen, C. J. Bolwerk, R. Timmer, E. J. Boerma, H. Obertop, K. Huibregtse, and D. J. Gouma.
Wait-and-see policy or laparoscopic cholecystectomy after endoscopic sphincterotomy for bile-duct stones: a randomised trial.
Lancet, 360(9335):761-5, September 2002.

Adrian P. Ireland