mast cells
Finally, the phosphodiesterase inhibitor theophylline        (100 microM) was equipotent to reproterol and DSCG in stabilizing rat mast cells.
Finally, the phosphodiesterase inhibitor theophylline        (100 microM) was equipotent to reproterol and DSCG in stabilizing  @OBJECT$  @PREDICAT$  @SUBJECT$ .