Report summary

For Washington University in St. Louis Department of Neurosurgery in 2015-2026, the graph shows 44 visible PIs and 153 internal PI collaborations. The dominant subject mix is Medicine as the leading field (55% of slots across 38 PIs; 38 labels), Neurology as the leading subfield (10% of slots across 11 PIs; 11 labels), and Glioma Diagnosis and Treatment as the leading topic (6% of slots across 8 PIs; 8 labels). That is a healthy pattern, with enough links to reveal several interpretable groups rather than one undifferentiated component. The top weighted PIs are Tammie L.S. Benzinger (67.9 weighted works; Dementia and Cognitive Impairment Research, Alzheimer's disease research and treatments). The most visible ties are Eric C. Leuthardt and Albert H. Kim (32 shared works, weight 9.9). The standout breakdown groups are group 1 with 9 PIs, 9 internal connections, weight 69.8, around Genetics, Epidemiology, Neurology, led by Hong Chen, Jiayi Huang, Eric C. Leuthardt.