Fig. 1From: Prevalence and clinico-bacteriological aspects of chronic suppurative otitis media at the Renaissance University Hospital in N'Djamena, ChadDistribution of cases according to patients' medical history. Mechanical trauma*- Ear trauma by cotton swab (n = 2); head injury (n = 2); ear slap trauma (n = 1); projectile ear trauma (n = 1)Back to article page