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To elucidate the relationship between social determinants of health and health care utilization among children (<18 y old at the time of LT) who have undergone LT, Dr Bittermann and her team performed a retrospective study merging data from the Organ Procurement and Transplantation Network (OPTN) and the Pediatric Health Information System (PHIS) database. Read more.

Authors

Bennett, Aaron D.; Morales, Knashawn H.; Huang, Yuan-Shung V.; Tam, Vicky; Shah, Amit; Loomes, Kathleen M.; Serper, Marina; Bittermann, Therese

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We are thrilled to announce the appointment of Tiffanie Jones, MD, MSCE, as the new Co-Director of the Master’s in Clinical Epidemiology (MSCE) Program... Read more.

 

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We’re excited to invite you to Cores Day 2025, taking place on Thursday, September 11, 2025, from 10 AM–1 PM in the Smilow lobby. Read more.

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Lisa brings over 20 years of experience in clinical research. Read more.

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Using electronic health record data from a national collaboration of pediatric health systems, this study examined the effectiveness of BNT162b2 vaccines for preventing COVID-19 infections and severe disease among previously uninfected children and adolescents.

Authors

Qiong Wu, PhD*; Jiayi Tong, MS*; Bingyu Zhang, MS; Dazheng Zhang, MS; Jiajie Chen, PhD; Yuqing Lei, MS; Yiwen Lu, BS; Yudong Wang, PhD; Lu Li, BA; Yishan Shen, MS; Jie Xu, PhD; L. Charles Bailey, MD, PhD; Jiang Bian, PhD; Dimitri A. Christakis, MD, MPH; Megan L. Fitzgerald, PhD; Kathryn Hirabayashi, MPH; Ravi Jhaveri, MD; Alka Khaitan, MD; Tianchen Lyu, MS; Suchitra Rao, MBBS, MSCS; Hanieh Razzaghi, PhD, MPH; Hayden T. Schwenk, MD, MPH; Fei Wang, PhD; Margot I. Gage Witvliet, PhD; Eric J. Tchetgen Tchetgen, PhD; Jeffrey S. Morris, PhD; Christopher B. Forrest, MD, PhD; and Yong Chen, PhD.

Angela DeMichele, MD and her team have recently received a $10 million grant to expand their work on how to prevent breast cancer recurrence, which is often fatal.

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Tuesday, September 29, 2026
12:00 pm - 1:00 pm
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Pedro Ochoa-Allemant, MD, MSCE

I am a hepatologist, physician-scientist, and Instructor of Medicine in the Division of Gastroenterology and Hepatology at the University of Pennsylvania Perelman School of Medicine.

Born and raised in Peru, I graduated from the Universidad de San Martin de Porres and earned a Master of Science in Clinical Epidemiology (MSCE) from the University of Pennsylvania, supported by an NIH T-32 training grant. I completed my internal medicine residency at Yale School of Medicine and subsequently joined the University of Pennsylvania to complete my fellowship training in gastroenterology and advanced/transplant hepatology. 

My research centers on steatotic liver disease (SLD), particularly metabolic dysfunction-associated steatotic liver disease (MASLD) and metabolic dysfunction and alcohol-associated liver disease (MetALD). I aim to advance personalized care in SLD by integrating rigorous epidemiologic methods with patient-centered and health system interventions. I am currently focused on developing point-of-care tools and risk stratification strategies to improve early identification, timely referral, and individualized management of high-risk patients with SLD.

My research is currently supported by the American Association for the Study of Liver Diseases (AASLD) through the Clinical, Translational, and Outcomes Research Award (CTORA). My work has been published in JAMA Internal Medicine, Journal of Hepatology, and Hepatology, among others.

Wednesday, September 16, 2026
9:00 am
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