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The research team determined the presence of fatty liver using the Fatty Liver Index (FLI), which reflects body mass index (BMI), waist circumference, and triglycerides

In older kids and teens, the Epstein-Barr virus (EBV), can cause the much-maligned mononucleosis, or mono for short

Cond Nast still accepts advertising dollars from Philip Morris International for so-called smoke-free products

Additional reporting by Sarah Haque Reporters: Ben Stockton, Laura Margottini, Alessia Cerantola and Andrei Ciurcanu Additional reporting: Sarah Haque Impact producer: Paul Eccles Desk editor: Chrissie Giles Global editor: James Ball Editor: Meirion Jones Production editor: Alex Hess Fact checker: Alice Milliken Legal team: Stephen Shotnes (Simons Muirhead Burton) Our reporting on tobacco is part of our Global Health project, which has a number of funders