Objective To assess the effect of calcium, vitamin D, or combined supplementation on fractures and falls in adults. Design Systematic review and meta-analysis. Data sources Trials included in ...

The benefit of beta-blockers after myocardial infarction in patients with a preserved left ventricular ejection fraction (LVEF) is unclear. We conducted a meta-analysis at the individual-patient level ...

Introduction Although most forcibly displaced individuals remain within their country of origin, internally displaced persons ...