Report summary

For Harvard University Department of Neurosurgery in 2015-2017, the graph shows 59 visible PIs and 134 internal PI collaborations. The main research signal is Medicine as the leading field (55% of slots across 52 PIs; 52 labels), Neurology as the leading subfield (15% of slots across 22 PIs; 22 labels), and Glioma Diagnosis and Treatment as the leading topic (6% of slots across 11 PIs; 11 labels). That is a healthy pattern, with enough links to reveal several interpretable groups rather than one undifferentiated component. The most prominent PIs by weighted works are Christoph J. Griessenauer (20.9 weighted works; Folate and B Vitamins Research, Intracranial Aneurysms: Treatment and Complications). The clearest collaboration lines are Ajith J. Thomas and Christopher S. Ogilvy (55 shared works, weight 27.6). The strongest breakdown groups are group 1 with 10 PIs, 13 internal connections, weight 49.4, around Neurology, Pulmonary and Respiratory Medicine, Epidemiology, led by Timothy R. Smith, Ian F. Dunn, Rose Du.