title: Erratum to: signatures of early frailty in the gut microbiota.
authors.affiliation: Department of Twin Research & Genetic Epidemiology, St Thomas' Hospital Campus, King's College London, 3rd & 4th Floor South Wing Block D, Westminster Bridge Road, London, SE1 7EH, UK.
authors.forename: Matthew A
authors.initials: MA
authors.lastname: Jackson
authors.affiliation: School of Microbiology and Alimentary Pharmabiotic Centre, University College Cork, Cork, Ireland.
authors.forename: Ian B
authors.initials: IB
authors.lastname: Jeffery
authors.affiliation: Department of Twin Research & Genetic Epidemiology, St Thomas' Hospital Campus, King's College London, 3rd & 4th Floor South Wing Block D, Westminster Bridge Road, London, SE1 7EH, UK.
authors.forename: Michelle
authors.initials: M
authors.lastname: Beaumont
authors.affiliation: Department of Twin Research & Genetic Epidemiology, St Thomas' Hospital Campus, King's College London, 3rd & 4th Floor South Wing Block D, Westminster Bridge Road, London, SE1 7EH, UK.
authors.forename: Jordana T
authors.initials: JT
authors.lastname: Bell
authors.affiliation: Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA.
authors.forename: Andrew G
authors.initials: AG
authors.lastname: Clark
authors.affiliation: Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA.
authors.forename: Ruth E
authors.initials: RE
authors.lastname: Ley
authors.affiliation: School of Microbiology and Alimentary Pharmabiotic Centre, University College Cork, Cork, Ireland.
authors.forename: Paul W
authors.initials: PW
authors.lastname: O'Toole
authors.affiliation: Department of Twin Research & Genetic Epidemiology, St Thomas' Hospital Campus, King's College London, 3rd & 4th Floor South Wing Block D, Westminster Bridge Road, London, SE1 7EH, UK.
authors.forename: Tim D
authors.initials: TD
authors.lastname: Spector
authors.affiliation: Department of Twin Research & Genetic Epidemiology, St Thomas' Hospital Campus, King's College London, 3rd & 4th Floor South Wing Block D, Westminster Bridge Road, London, SE1 7EH, UK. claire.j.steves@kcl.ac.uk.
authors.forename: Claire J
authors.initials: CJ
authors.lastname: Steves