P. Royle, and N. Waugh. BMC medical research methodology, (July 2005)LR: 20061115; PUBM: Electronic; DEP: 20050723; JID: 100968545; 2005/02/05 received; 2005/07/23 accepted; 2005/07/23 aheadofprint; epublish.
P. Royle, and N. Waugh. Diabetic medicine : a journal of the British Diabetic Association, 24 (3):
308-311(March 2007)PUBM: Print; JID: 8500858; RF: 7; ppublish.
M. Eccles, N. Rousseau, and N. Freemantle. Journal of health services research & policy, 7 (2):
98-103(April 2002)LR: 20041117; PUBM: Print; JID: 9604936; ppublish.