Michael Moher, Patricia Yudkin, Lucy Wright, Rebecca Turner, Alice Fuller, Theo Schofield et al
Moher M, Yudkin P, Wright L, Turner R, Fuller A, Schofield T et al.
Cluster randomised controlled trial to compare three methods of promoting secondary prevention of coronary heart disease in primary care
BMJ 2001; 322 :1338
doi:10.1136/bmj.322.7298.1338