Background For 3–4% of pregnancies, the fetus will be in the breech presentation at term.
For most of these women, the approach to delivery is controversial. We did a randomised trial …

This study was carried out to determine whether the minimal important difference, in evaluative
quality of life instruments which use a 7-point scale, is similar across individual domains …

Background The outcome of childhood asthma in adults has been described in high-risk
cohorts, but few population-based studies have reported the risk factors for persistence and …

Background Patients with acute proximal deep-vein thrombosis are usually treated first in
the hospital with intravenous standard (unfractionated) heparin. However, the longer plasma …

… Andrew Willan was responsible for construction of the database. Andrew Willan and
Jennifer Clinch oversaw the analysis. Jennifer Clinch and Teresa Janz conducted the analysis. …

Background The efficacy of prophylaxis against stress ulcers in preventing gastrointestinal
bleeding in critically ill patients has led to its widespread use. The side effects and cost of …

Background and methods:To determine the diagnostic values of laboratory tests used in the
diagnosis of iron-deficiency anemia, the authors conducted a systematic over-view of the …

Background Breastfeeding is widely advocated to reduce risk of atopy and asthma, but the
evidence for such an effect is conflicting. We aimed to assess long-term outcomes of asthma …

The survival benefit of combination chemotherapy to patients with advanced non-small-cell
carcinoma of the lung (NSCLC) is controversial. To study this question, the National Cancer …

Economic evaluation is often seen as a branch of health economics divorced from mainstream
econometric techniques. Instead, it is perceived as relying on statistical methods for …