Hence, no association could be found between apoenzyme activity and the incidence of vitamin deficiencies.O VDirigeJacobOstergardHuntThe American journal of clinical nutritionDirige, O.V., Jacob, M., Ostergard, N., and Hunt, I. (1978) : Apoenzyme activities of erythrocyte transketolase, glutathione reductase, and glutamic-pyruvic transaminase durin...