In April 2016 '' New Scientist '' obtained a copy of a data - sharing agreement between DeepMind and the Royal Free London NHS Foundation Trust , which operates the three London hospitals which an estimated 1.6 million patients are treated annually .
In April 2016 '' New Scientist '' obtained a copy of a data - sharing agreement between DeepMind and the Royal Free London NHS Foundation Trust . 
 The latter operates the three London hospitals where an estimated 1.6 million patients are treated annually .