Dr Cohen is the Division Head of Nuclear Medicine at Lions Gate Hospital in Vancouver, Canada. He is the past chairman of the Diagnostic Accreditation Subcommittee for Nuclear Medicine of the British Columbia (B.C.) Medical Association and the B.C. College of Physicians, Member-at-Large of the Canadian Association of Nuclear Medicine, and Clinical Professor at the University of B.C. Dr Cohan has numerous publications and is a member of the editorial board of the Iranian Journal of Nuclear edicine. He is a Fellow of the Royal College of Physicians and Surgeons of Canada in Nuclear Medicine, and also of the American Board of Nuclear Medicine.