NEJM This Week — September 4, 2025

Featuring articles on obesity, type 1 diabetes, syphilis, and heparin-induced thrombocytopenia; a review article on the management of acute type B aortic dissection; a Clinical Problem-Solving describing a fruitful workup; and Perspectives on the corporatization deal, on advancing physician-scientist training in China, and on the rise of drug innovation in China.