. "Any process that modulates the frequency, rate, or extent of leukocyte degranulation." . . . "regulation of leukocyte degranulation" . "regulation of immune cell degranulation" . "regulation of immune cell granule exocytosis" . "regulation of leucocyte degranulation" . "regulation of leukocyte granule exocytosis" . . . . . . . . . . . . . . . . . .