2011a-510 aspectssocio-economiques bericht congres congresses control control[mesh] epidemiologicmethods epidemiology fettsucht gezondheidszorg globalhealth obesite obesity obesity[mesh] onderzoek onderzoeksmethoden politiquenutritionnelle pra˜vention preventievegeneeskunde prevention publichealth publichealth[mesh] santepublique vetzucht wa105 wa105w3672011 weightloss weightloss[mesh] worldhealth