Reuben J. Broom, FRACP Reuben J. Broom, is medical oncologist at Auckland City Hospital and is affiliated with the University of Auckland, New Zealand. He graduated from the University of Auckland and is a fellow of the Royal Australasian College of Physicians. He completed his clinical research fellowship at Princess Margaret Hospital, Toronto. Reuben is an active researcher in both renal and breast cancers. His main renal research focus is on therapeutic investigator-initiated phase II trials with companion biomarker development. For the translational component of such studies he collaborates with several Auckland-based laboratories.