Hamid Yunis wrote this bylined article on the potential negative impact for UK cancer care if Brexit causes the UK to leave the European Atomic Energy Community (Euratom). “The UK relies on Euratom for the diagnosis and treatment of some cancer patients,” Mr. Yunis wrote. “Leaving Euratom, without an appropriate alternative, will make it much harder for the UK to access key nuclear isotopes used in such diagnosis and treatment.”