1. Fellow - Cardiovascular Diseases University of Iowa Hospitals and Clinics
  2. Resident - Internal Medicine University of Iowa
  3. Other - D. Phil University of Oxford
  4. Other - Hypertension Clinic John Radcliffe Hospital
  5. Registrar - Anesthesiology
  6. Resident - Experience in General, Neurosurgical, Obstetric, Pediatric and Cardiac Anesthesia. King Edward Hospital
  7. Internship - Responsible for Medical, Surgical, Obstetric and Gynecologic Inpatients (rotating Internship) King Edward Hospital
  8. Internship - Medicine, Surgery, Obstetrics, Gynecology University of Natal
  9. MB ChB University of Natal

Academic rank

  1. Professor of Medicine


  • Neurocirculatory abnormalities in sleep and sleep apnea
  • Chemoreflex responses in hypertension
  • Neurocirculatory control mechanisms in humans in health and disease


See my publications


See a description of research activities.