The nuclear reprogramming factor of the present invention may contain {HEAD ~ one or more factors} relating to differentiation, development, {TAIL ~ proliferation} or the like and factors having other physiological activities, as well as other gene products which can function as a nuclear reprogramming factor 
The nuclear reprogramming factor of the present invention may contain { HEAD ~ one or more factors } relating to differentiation , development , { TAIL ~ proliferation } or the like and factors having other physiological activities , as well as other gene products which can function as a nuclear reprogramming factor
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