von Bartheld and coauthors conducted a randomized controlled multicenter trial in 304 patients to compare conventional bronchoscopy with endosonography for the detection of granulomas in patients with suspected pulmonary sarcoidosis.

In this prospective cohort study, Ziegler et al pooled data from 3 studies conducted in Colorado, Finland, and Germany to determine the rate of progression to diabetes from islet autoantibody seroconversion in children. In an Editorial, Skyler and Sosensko discuss the contribution of the study findings and the need for the development of effective prevention studies.

Malani and coauthors report on magnetic resonance imaging screening to identify spinal and paraspinal infections associated with injections of contaminated methylprednisolone acetate. In an accompanying Editorial, Thompson and coauthors discuss real-word experience in the midst of the Exserohilum meningitis outbreak.

Heijstek conducted a randomized trial among 137 children with juvenile idiopathic arthritis to assess whether measles-mumps-rubella (MMR) booster vaccination affects disease activity and to describe MMR booster immunogenicity.

Saver and colleagues evaluate the degree to which onset to treatment time is associated with outcome among 58 353 acute ischemic stroke patients treated with intraveneous tissue-type plasminogen activator.