https://genesandnutrition.biomedcentral.com/articles/10.1186/s12263-016-0544-0 https://genesandnutrition.biomedcentral.com/articles/10.1186/s12263-016-0542-2 https://genesandnutrition.biomedcentral.com/articles/10.1186/s12263-016-0545-z https://genesandnutrition.biomedcentral.com/articles/10.1186/s12263-016-0541-3