BMI and all cause mortality: Systematic review and non-linear dose-response meta-analysis of 230 cohort studies with 3.74 million deaths among 30.3 million participants

Dagfinn Aune, Abhijit Sen, Manya Prasad, Teresa Norat, Imre Janszky, Serena Tonstad, Pål Romundstad and Lars J. Vatten