New England Journal of Medicine
July 25, 2019 Vol. 381 No. 4


Clinical Practice
Peter M. Strebel, M.B., Ch.B., M.P.H., and Walter A. Orenstein, M.D.
This Journal feature begins with a case vignette highlighting a common clinical problem. Evidence supporting various strategies is then presented, followed by a review of formal guidelines, when they exist. The article ends with the authors’ clinical recommendations.