1. Department of Endocrine SurgeryImperial College Healthcare NHS Trust London UK
2. Department of Surgery & CancerImperial College London UK
3. Department of RadiologyImperial College Healthcare NHS Trust London UK
4. Department of AnaesthesiaImperial College Healthcare NHS Trust London UK
5. Department of Cardiothoracic Surgery, Hammersmith HospitalImperial College Healthcare NHS Trust London UK