1. Levy, M.L., Porter, V.P, &Coakley, C.C. Premedication without vagal blocking drugs. Anesth. Anaig.43,1: 33 (1964).
2. Fabick, Y.S. &Smiler, B.G. Is anticholinergic premedication necessary? Anesthesiology 43,4:472(1975).
3. Innés, LR. &Nickerson, A. Atropine, scopolamine and related antimuscarinic drugs. In The Pharmacological Basis of Therapeutics, Louis S. Goodman and Alfred Gilman (eds. ), 5th edition, p. 518 (1975),
4. Annis, P., Landa, J., &Lichtiger, M. Effects of atropine on velocity of trachea! mucus in anaesthetized patients. Anesthesiology44,1: 74 (1976).