1. Classification and criteria of otitis media
Stephen Bervnan 
Clinical Microbiology and Infection 
Volume 3, Pages 3S1-3S4 (January 1997)
DOI: /S X(14)
Copyright © 1997 European Society of Clinical Infectious Diseases Terms and Conditions

2. Figure 1
A Welch Allyn pneumatic otoscope head is modified with an attached operatinglens. A 00 ear curette is shown which can be easily inserted through a size 3 mm speculum. A small piece of rubber tubing is present on the speculum to achieve a more adequate seal to perform pneumatic otoscopy.
Clinical Microbiology and Infection 1997 3, 3S1-3S4DOI: ( /S X(14) )
Copyright © 1997 European Society of Clinical Infectious Diseases Terms and Conditions