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Ryan CA, Vathiny OV, Gorbach PM, Leng HB, Berlioz-Arthaud A, Whittington WL, Holmes KK.Ryan CA, et al. Among authors: gorbach pm.Lancet. 1998 Apr 18;351(9110):1175. doi: 10.1016/s0140-6736(98)24016-5.Lancet. 1998.PMID: 9643690