Background Few meta-analyses of randomised trials assess the quality of the studies
included. Yet there is increasing evidence that trial quality can affect estimates of intervention …

Background: Physical exercise has been identified as a potential intervention to improve
quality of life in women with breast cancer. We sought to summarize the available evidence …

Objectives To review and synthesize the state of research on a variety of meditation practices,
including: the specific meditation practices examined; the research designs employed and …

Background Airway oedema (swelling) and mucus plugging are the principal pathological
features in infants with acute viral bronchiolitis. Nebulised hypertonic saline solution (≥ 3%) …

Context.—Review articles are important sources of information to help guide decisions by
clinicians, patients, and other decision makers. Ideally, reviews should include strategies to …

Importance Approximately one-third of children experiencing acute concussion experience
ongoing somatic, cognitive, and psychological or behavioral symptoms, referred to as …

Background: There is controversy about which children with minor head injury need to
undergo computed tomography (CT). We aimed to develop a highly sensitive clinical decision …

Background Lately, the number of systematic reviews published has increased substantially.
Many systematic reviews exclude trials published in languages other than English. However…

Objective To conduct a systematic review of the efficacy and safety of exogenous melatonin
in managing secondary sleep disorders and sleep disorders accompanying sleep restriction, …

Including only a portion of all available evidence may introduce systematic errors into the
meta-analytic process and threaten its validity. We set out to examine whether language …