Report summary

For Harvard University Department of Population in 2018-2020, the graph shows 26 visible PIs and 41 internal PI collaborations. The dominant subject mix is Medicine as the leading field (43% of slots across 23 PIs; 23 labels), Public Health, Environmental and Occupational Health as the leading subfield (11% of slots across 7 PIs; 7 labels), and Health Systems, Economic Evaluations, Quality of Life as the leading topic (5% of slots across 4 PIs; 4 labels). The network looks reasonably well-rounded, with visible collaboration groups but not so much concentration that one field explains the whole department. The top weighted PIs are Chanu Rhee (29.3 weighted works; Sepsis Diagnosis and Treatment, Health Systems, Economic Evaluations, Quality of Life). The most visible ties are Michael Klompas and Chanu Rhee (53 shared works, weight 34.5); Marie‐France Hivert and Emily Oken (53 shared works, weight 20.6). The standout breakdown groups are group 1 with 10 PIs, 14 internal connections, weight 62.6, around Epidemiology, Economics and Econometrics, Surgery, led by Chanu Rhee, Michael Klompas, Rui Wang.