- Multicenter study of bitolterol and isoproterenol nebulizer solutions in nonsteroid-using patients. Pinnas, J.L., Bernstein, I.L., Bronsky, E.E., Bush, R.K., Chervinsky, P., Condemi, J.J., Dockhorn, R.J., Nathan, R.A., Repsher, L.H., Bhatt, B.D. J. Allergy Clin. Immunol. (1987)