https://microbialcellfactories.biomedcentral.com/articles/10.1186/1475-2859-4-4 https://microbialcellfactories.biomedcentral.com/articles/10.1186/1475-2859-4-3 https://microbialcellfactories.biomedcentral.com/articles/10.1186/1475-2859-4-2 https://microbialcellfactories.biomedcentral.com/articles/10.1186/1475-2859-4-1