P. Shekelle, E. Ortiz, S. Rhodes, S. Morton, M. Eccles, J. Grimshaw, and S. Woolf. JAMA : the journal of the American Medical Association, 286 (12):
1461-1467(September 2001)LR: 20061115; PUBM: Print; GR: 290-97-0001/PHS; JID: 7501160; CIN: JAMA. 2001 Sep 26;286(12):1509-11. PMID: 11572746; ppublish.
S. French, S. McDonald, J. McKenzie, and S. Green. BMC medical research methodology, (October 2005)LR: 20061115; PUBM: Electronic; DEP: 20051014; JID: 100968545; 2005/08/05 received; 2005/10/14 accepted; 2005/10/14 aheadofprint; epublish.
G. Browman. JAMA : the journal of the American Medical Association, 286 (12):
1509-1511(September 2001)LR: 20061107; PUBM: Print; JID: 7501160; CON: JAMA. 2001 Sep 26;286(12):1461-7. PMID: 11572738; ppublish.