1 Health Research Board Centre for Primary Care Research, Department of General Practice, Royal College of Surgeons in Ireland, 123 St Stephens Green, Dublin 2, Ireland; Health Information and Quality Authority, Smithfield, Dublin 7, Ireland. Electronic address: [email protected].
2 Health Information and Quality Authority, Smithfield, Dublin 7, Ireland.
3 Health Research Board Centre for Primary Care Research, Department of General Practice, Royal College of Surgeons in Ireland, 123 St Stephens Green, Dublin 2, Ireland.
4 Health Information and Quality Authority, Smithfield, Dublin 7, Ireland; Department of Pharmacology & Therapeutics, Trinity College Dublin, Ireland.