I had a frontal lobe glioblastoma multiforme grade 4—that’s medical speak for “really darn big brain tumor.” How a Routine Eye Exam Revealed This Boy’s Brain Tumor. Miracle #2: Surviving one year.

Recognition of self-peptide–MHC complexes in the thymus is necessary for thymocyte survival, but can also result in cell death. Here, the authors provide a unique insight into this apparent ...