Edzard Ernst has researched all aspects of alternative medicine for more than 20 years. He and his team have published well over 1 000 peer-reviewed papers and many books on the subject. His work has been awarded more than a dozen prizes, including the John Maddox Prize 2016. He retired about three years ago and is emeritus professor of the University of Exeter. He continues to play an active role in the public debate on alternative medicine.Kevin Smith is a senior lecturer at Abertay University, Scotland. He researches and teaches in the related areas of bioethics and genetics. He has published a number of highly regarded academic papers in medical ethics, on subjects ranging from the ethics of gene therapy to the ethics of homeopathy.