From the Departments of *Nuclear Medicine and †Radiology, Medical Center Leeuwarden, Leeuwarden; and ‡Department of Otorhinolaryngology and §Department of Pediatric Pulmonology and Allergology, Beatrix Children’s Hospital, University Medical Center Groningen, Groningen, the Netherlands.
Received for publication January 2, 2012; revision accepted March 27, 2012.
Conflicts of interest and sources of funding: none declared.
Reprints: Hans Balink, MD, Medical Center Leeuwarden, 8901 BR Leeuwarden, the Netherlands. E-mail: email@example.com.