Cohort profile: The Bariatric Experience Long Term (BELONG): a long-term prospective study to understand the psychosocial, environmental, health and behavioural predictors of weigh... oleh Kristina H Lewis, Ming Ji, Karen J Coleman, Silvia R Paz, Bhumi B Bhakta, Brianna Taylor, Jialuo Liu, Tae K Yoon, Mayra Macias, David E Arterburn, Cecelia L Crawford, Adam Drewnowksi, Marlaine S Figueroa Gray, Laurel D Hansell, Darren D Moore, Sameer B Murali, Deborah R Young