Dr. Frederick Banting, a general practician, who was also teaching orthopaedics and anthropology part-time at the University of Western Ontario in London at the time of Paulescu's published research regarding the already developed aqueous pancreatic extract and Charles Best, a a 22-year-old medical student at the University of Toronto who worked at the time as an assistant to the surgeon Dr. Frederick Banting also did similar experiments while trying to find a cure for diabetes. In these experiments they used as well dogs.