In 2012, Goldacre was appointed a Wellcome Trust Research Fellow in Epidemiology at the London School of Hygiene & Tropical Medicine. In 2015, Goldacre moved to the Nuffield Department of Primary Care Health Sciences's Centre for Evidence-Based Medicine at the University of Oxford, joining a project funded by a grant from the Laura and John Arnold Foundation. In 2022, he became the first Bennett Professor of Evidence-Based Medicine and director of Oxford's newly-established Bennett Institute for Applied Data Science. As of 2016, according to Scopus and Google Scholar his most cited articles have been published in NeuroReport, the European Journal of Preventive Cardiology, the British Medical Journal, The Lancet, and PLOS ONE. In 2020, Goldacre was, with Liam Smeeth, the principal investigator of the OpenSAFELY collaboration which created a software platform to analyse the records of 24 million NHS patients to provide detailed risk factors for hospital deaths from COVID-19. "Bad Science" Guardian column and blog Goldacre was known for his weekly column, "Bad Science", which ran in the Saturday edition of The Guardian from 2003 until November 2011. The column focused on pseudoscience and the misuse of science. Topics discussed included marketing, the media, quackery, problems with the pharmaceutical industry, and its relationship with medical journals. Goldacre has criticised anti-immunisation campaigners (particularly followers of Andrew Wakefield such as Melanie Phillips and Jeni Barnett), Brain Gym, bogus positive MRSA swab stories in tabloid newspapers, publication bias, and the makers of the product Penta Water. He has been a particularly hardline critic of the nutritionist Gillian McKeith. While investigating McKeith's membership of the American Association of Nutritional Consultants, Goldacre obtained a professional membership on behalf of his late cat, Henrietta, from the same institution for $60. In February 2007, McKeith agreed to stop using the title "Doctor" in her advertising, following a complaint to the Advertising Standards Authority by a "Bad Science" reader. In an interview with Richard Saunders of the podcast Skeptic Zone, Goldacre said, "Nutritionists are particularly toxic because they are the alternative therapists who, more than any other, misrepresent themselves as being men and women of science." In 2008, Matthias Rath, a vitamin entrepreneur, sued Goldacre and The Guardian over three articles, in which Goldacre criticised Rath's promotion of vitamin pills to AIDS sufferers in South African townships. Rath dropped his action in September 2008 and was ordered to pay initial costs of £220,000 to The Guardian. As