1. Freid VM, Mukuc DM, Rooks RN. Ambulatory health care visits by children: principal diagnosis and place of visit. Vital Health Stat 1998;13:1–23.
2. Rovers MM, Schilder AGM, Zielhuis GA, Rosenfeld RM. Otitis media. Lancet 2004;363:465–473.
3. Marcy M, Takata G, Chan LS, Shekelle P, Mason W, Wascman L, et al. Management of acute otitis media: evidence report/technology assessment no.15 (prepared by the Southern California Evidence-based Practice Center under contract no._290-97-0001). AHRQ Publication No. 01-E010. Rockville, MD: Agency for Healthcare Research and Quality, 2001.
4. Glasziou PP, Del Mar CB, Sanders SL, Hayem M. Antibiotics for acute otitis media in children. Cochrane Database Syst Rev 2004;1:CD 000219.
5. Rosenfeld RM, Vertrees JE, Carr J, Cipolle RJ, Uden DL, Giebink GS, et al. Clinical efficacy of antimicrobial drugs for acute otitis media: metaanalysis of 5400 children from thirty-three randomized trials. J Pediatr 1994;124:355–367.