1. References to studies included in this review
2. Cannon 1967 {published data only}
3. Treatment of otitis externa with a tropical steroid-antibiotic combination;Cannon;Eye, Ear, Nose and Throat Monthly,1967
4. Emgard 1999 {published data only}
5. Effects of betamethasone dipropionate plus an antihistamine in patients with external otitis;Emgard;Current Therapeutic Research, Clinical and Experimental,1999