. "Any process that modulates the frequency, rate, or extent of CD4-positive, alpha beta T cell differentiation." . . . "regulation of CD4-positive, alpha-beta T cell differentiation" . "regulation of CD4-positive T lymphocyte differentiation" . "regulation of CD4-positive T-cell differentiation" . "regulation of CD4-positive T-lymphocyte differentiation" . "regulation of CD4-positive, alpha beta T cell development" . "regulation of CD4-positive, alpha beta T cell differentiation" . "regulation of CD4-positive, alpha beta T lymphocyte differentiation" . "regulation of CD4-positive, alpha beta T-cell differentiation" . "regulation of CD4-positive, alpha beta T-lymphocyte differentiation" . . . . . . .