positive regulation of serine phosphorylation of STAT3 protein
Known as: upregulation of serine phosphorylation of STAT3 protein, up-regulation of serine phosphorylation of STAT3 protein, up regulation of serine phosphorylation of STAT3 protein
Any process that activates or increases the frequency, rate or extent of serine phosphorylation of STAT3 protein. [GO_REF:0000058, GOC:mr, GOC…