Mortimer B O'Connor1
, Neil O'Donovan2
, Mark J Phelan3,4
and Michael J Regan3,4 
1
Department of Medicine, South Infirmary - Victoria University Hospital, Old Blackrock Road, Cork, Ireland
2
Department of Radiology, South Infirmary - Victoria University Hospital, Old Blackrock Road, Cork, Ireland
3
Arthritis and Osteoporosis Centre, Department of Rheumatology, South Infirmary - Victoria University Hospital, Old Blackrock Road, Cork, Ireland
4
The School of Medicine, University College Cork, Cork, Ireland