Re: The Sadé and Tos staging systems: not adequately reliable methods of staging retraction of the tympanic membrane?
Bhutta
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Haggard
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D004427:Ear Diseases / Q000175:diagnosis* / Q000503:physiopathology*; D006801:Humans; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D014432:Tympanic Membrane / Q000503:physiopathology*