Trotter, who was a head and neck surgeon at University College Hospital, London, read Freud's works, and it was he who introduced Wilfred Bion, whom he lived and worked with, to Freud's ideas.
Trotter, som var hoved- og halskirurg ved University College Hospital i London, læste Freuds værker, og det var ham som introducerede Wilfred Bion, som han levede og arbejdede med, til Freuds ideer.