Chapter 2 on Patient-centred Planning and Concordance in 'Towards Prescribing Practice' Edited by John McKinnon ISBN 10: 0-470-02843-2. Also 'Nurse Prescribing' eds Humphres & Green ISBn 0-333-93092-4 Chapter 7 The non compliant patient. In the index under Concordance you are directed to Compliance. Both books I have borrowed from RCN library. Think you can request on line. If you go into www.knowledge.scot.nhs.uk & have or apply for an Athens log in you will have access to many journal articles which should give you leads to Concordance in Nurse prescribing. Good Luck.