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Amer-Wåhlin I, Hellsten C, Norén H, Hagberg H, Herbst A, Kjellmer I, Lilja H, Lindoff C, Månsson M, Mårtensson L, Olofsson P, Sundström A, Marsál K.Amer-Wåhlin I, et al. Among authors: hellsten c.Lancet. 2001 Aug 18;358(9281):534-8. doi: 10.1016/s0140-6736(01)05703-8.Lancet. 2001.PMID: 11520523Clinical Trial.