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. Author manuscript; available in PMC: 2010 Nov 9.
Published in final edited form as: Lancet. 1995 Nov 18;346(8986):1346–1350. doi: 10.1016/s0140-6736(95)92349-7

Figure 2.

Figure 2

Unbalanced experimental design In multicentre trials19,20

American details20 shown. ALG=antilymphocyte globulin. n=number of centres.