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	Articles
1815	Cover Article The AAP Practice Parameter on Urinary Tract Infections in Febrile Infants and Young Children KENNETH B. ROBERTS, M.D. Because of its associated morbidity, frequency, cost and variation in diagnosis and management, urinary tract infection in children was the subject of a practice parameter developed by the American Academy of Pediatrics.
1823	Use of Systemic Agents in the Treatment of Acne Vulgaris BETTY ANNE JOHNSON, M.D., PH.D., and JULIA R. NUNLEY, M.D. Effective treatment of inflammatory acne vulgaris usually requires oral medication using systemic antibiotics, combined oral contraceptives or spironolactone. Severe nodulocystic acne that does not respond to these agents may be treated with isotretinoin, but physicians should exercise caution when prescribing this drug because of its extensive adverse effects.
	Patient information: "Using Isotretinoin the Right Way for Acne," p. 1835
1839	Practical Therapeutics Using Progestins in Clinical Practice BARBARA S. APGAR, M.D., M.S., and GRANT GREENBERG, M.D., M.A. Important clinical functions of progestational agents include regulation of the menstrual cycle, prevention of endometrial hyperplasia, treatment of abnormal uterine bleeding and contraception.
	Patient information: "Progestin-Only Contraceptives," p. 1849
1853	Cardiovascular Medicine Update Optimizing Beta-Blocker Use After Myocardial Infarction PATRICIA A. HOWARD, PHARM.D., and EDWARD F. ELLERBECK, M.D., M.P.H. Underuse of beta blockers after a myocardial infarction may stem from fear of adverse effects, especially in elderly patients or those with diabetes or heart failure. However, these are the patients who derive the greatest benefit from beta-blocker therapy after infarction.
	Patient information: "Taking a Beta Blocker for Your Heart Problem," p. 1865
1870	Topical Fluoroquinolones for Eye and Ear NANCY E. MORDEN, M.D., and ETHAN M. BERKE, M.D. Topical fluoroquinolones are safe and effective in the treatment of certain bacterial infections of the eye and ear.

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