1. Quality Improvement, Royal College of Physicians of Ireland , Frederick House, 19 South Frederick Street, Dublin D02 X266, Ireland
2. Aga Khan University , P.O. Box 38129 Dar es Salaam, Tanzania, Dar es Salaam, Tanzania
3. Global Health Programme, Health Service Executive , Dr Steevens Hospital, Steevens Lane, Dublin D08W2A8, Ireland