[1
]
Cardiology Department, Ulster Hospital, South Eastern Health and Social Care Trust,
Upper Newtownards Road, Dundonald, Belfast BT16 1RH, UK Centre for Vision and Vascular
Science, Institute of Clinical Science A, Queen's University Belfast, Royal Victoria
Hospital Belfast, Belfast BT126BA, UK mckavanagh@doctors.net.uk.
[2
]
Cardiology Department, Ulster Hospital, South Eastern Health and Social Care Trust,
Upper Newtownards Road, Dundonald, Belfast BT16 1RH, UK.
[3
]
The Northern Ireland Clinical Trials Unit, Education and Research Centre, Royal Hospitals,
Belfast BT12 6BA, UK.
[4
]
Centre for Vision and Vascular Science, Institute of Clinical Science A, Queen's University
Belfast, Royal Victoria Hospital Belfast, Belfast BT126BA, UK.
[5
]
Cardiology Department, Ulster Hospital, South Eastern Health and Social Care Trust,
Upper Newtownards Road, Dundonald, Belfast BT16 1RH, UK Centre for Vision and Vascular
Science, Institute of Clinical Science A, Queen's University Belfast, Royal Victoria
Hospital Belfast, Belfast BT126BA, UK.