Report summary

University of California, San Francisco Department of Epidemiology and Biostatistics in 2015-2017 reads as a 71-PI network with 83 internal PI collaborations. The dominant subject mix is Medicine as the leading field (48% of slots across 60 PIs; 60 labels), Epidemiology as the leading subfield (9% of slots across 16 PIs; 16 labels), and HIV/AIDS Research and Interventions as the leading topic (4% of slots across 8 PIs; 8 labels). That is promising: collaboration is not just one large hairball, and the leading breakdown groups cover 25 PIs across distinct clusters. The leading PI names are Benjamin N. Breyer (27.2 weighted works; Urological Disorders and Treatments, Genital Health and Disease); Kristine Yaffe (22.5 weighted works; Sleep and related disorders, Dementia and Cognitive Impairment Research). The most visible ties are Travis C. Porco and Thomas M. Lietman (27 shared works, weight 12.2). The leading breakdown groups are group 1 with 10 PIs, 10 internal connections, weight 9, around Nephrology, Surgery, Emergency Medicine, led by Kirsten Bibbins‐Domingo, Alan S. Go, Kirsten L. Johansen; group 2 with 9 PIs, 18 internal connections, weight 62.7, around Genetics, Molecular Biology, Oncology, led by Annette M. Molinaro, John S. Witte, Kyle M. Walsh.