BMJ Group Apr 15 2026 A substantial amount of medical information provided by 5 popular chatbots is inaccurate and incomplete, with half of the answers to clear evidence based questions "somewhat" or "highly" problematic, show the results of a study published in the open access journal  BMJ Open.   Continued deployment of these chatbots without public education and oversight risks amplifying misinformation, warn the researchers. Generative AI chatbots have been rapidly adopted across research,