1 Subjects: “...Clinical Trials as Topic...”

2 Subjects: “...Clinical Trials as Topic...”

3

4

5 “...Studies did not contain enough information to assess adequately the effects of progestin use...”

6 “...Studies did not contain enough information to assess adequately the effects of progestin use...”

7

8 “... to 1999, the Cochrane Controlled Trials Register and Library, and national experts. STUDY SELECTION: All...”

9 “... to 1999, the Cochrane Controlled Trials Register and Library, and national experts. STUDY SELECTION: All...”

10 “... controlled trials of estrogen were identified and none met criteria to be ranked as a good-quality study. A...”

11 “... controlled trials of estrogen were identified and none met criteria to be ranked as a good-quality study. A...”

12 “... for all published studies reporting CVD, CAD, and stroke incidence and/or mortality in association...”

13 “...Our search found too few studies on pregnant women to create evidence tables, although pertinent...”

14 “...Our search found too few studies on pregnant women to create evidence tables, although pertinent...”

15 “...STUDY SELECTION: We included controlled and observational studies of (1) the accuracy, yield...”

16 “...STUDY SELECTION: We included controlled and observational studies of (1) the accuracy, yield...”

17 “... Library, reviews, editorials, and experts. STUDY SELECTION: Studies that evaluated mass-screening programs...”

18 “...: Twelve studies of HRT (3 randomized controlled trials, 8 case-control studies, and one cohort study...”

19 “...: Twelve studies of HRT (3 randomized controlled trials, 8 case-control studies, and one cohort study...”

20 “... Library, reviews, editorials, and experts. STUDY SELECTION: Studies that evaluated mass-screening programs...”