Ramsey Alsarraf, Chung J. Jung, Jonathon Perkins, Catherine Crowley, Nicole W. Alsarraf, George A. Gates,
Measuring the Indirect and Direct Costs of Acute Otitis Media Archives of Otolaryngology-head & Neck Surgery. ,vol. 125, pp. 12- 18 ,(1999) ,
10.1001/ARCHOTOL.125.1.12