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1 Immunomodulatory effects of betulinic acid from the bark of white birch on mice
Jin-e Yi, Bozena Obminska-Mrukowicz, Li-yun Yuan, Hui Yuan
J Vet Sci.2010;11(4):305-313.   Published online 2010 December 3     DOI: http://dx.doi.org/10.4142/jvs.2010.11.4.305
      

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