Report summary

For University of Southern California Department of Population and Public Health Sciences in 2015-2026, the graph shows 118 visible PIs and 803 internal PI collaborations. The dominant subject mix is Medicine as the leading field (35% of slots across 82 PIs; 82 labels), Health, Toxicology and Mutagenesis as the leading subfield (7% of slots across 21 PIs; 21 labels), and Air Quality and Health Impacts as the leading topic (5% of slots across 17 PIs; 17 labels). That is a healthy pattern, with enough links to reveal several interpretable groups rather than one undifferentiated component. The top weighted PIs are Adam M. Leventhal (94.8 weighted works; Smoking Behavior and Cessation, Behavioral Health and Interventions). The most visible ties are Adam M. Leventhal and Jessica L. Barrington‐Trimis (109 shared works, weight 54.1); Carrie V. Breton and Theresa M. Bastain (134 shared works, weight 46.3). The standout breakdown groups are group 1 with 9 PIs, 9 internal connections, weight 238, around Physiology, Clinical Psychology, Applied Psychology, led by Adam M. Leventhal, Jennifer B. Unger, Jessica L. Barrington‐Trimis; group 2 with 9 PIs, 13 internal connections, weight 320.8, around Health, Toxicology and Mutagenesis, Pediatrics, Perinatology and Child Health, Pollution, led by Shohreh F. Farzan, Sandrah P. Eckel, Jill Johnston.