To the Editor.
—I read with great interest the article by Dr Mulrow and colleagues.1 I congratulate both the editors of JAMA and the authors for bringing the results of this excellent work to the attention of the medical community. There is, however, an error and an oversight in the article.The legend to Figure 11(p1934) indicates that "HTN Coop" stands for "Hypertension Detection and Follow-up Program Cooperative Group." Yet the reference next to "HTN Coop" given in the body of Figure 1 is number 3. This is not one of the Hypertension Detection and Follow-up Program (HDFP) articles as they appear in the author's reference list (eg, references 4,31, and 48). Rather, their reference number 3 is an article from the Hypertension-Stroke Cooperative Study Group.2 The question is whether the data in Figure 1 represent results from the HDFP or the Hypertension-Stroke Cooperative Study Group.Furthermore, in