1.]'T is now generally agreed that friction is, in some way, 1 a consequence of the forces
which molecules exer~ on one another when sufficiently close together. It is known that two …

Background There have been few detailed, in-person interviews and examinations to obtain
follow-up data on 5-year outcomes among survivors of the acute respiratory distress …

ContextSevere acute respiratory syndrome (SARS) is an emerging infectious disease that
first manifested in humans in China in November 2002 and has subsequently spread …

A Third Vaccine Dose in Organ-Transplant Recipients It is known that people receiving
immune suppressive therapy, such as recipients of solid-organ transplants, have a suboptimal …

Objective To compare the effects of treatments for coronavirus disease 2019 (covid-19).
Design Living systematic review and network meta-analysis. Data sources WHO covid-19 …

Background The Canadian Continuous Positive Airway Pressure for Patients with Central
Sleep Apnea and Heart Failure trial tested the hypothesis that continuous positive airway …

Background: Exercise therapy encompasses a heterogeneous group of interventions. There
continues to be uncertainty about the most effective exercise approach in chronic low back …

PURPOSE: To prospectively identify risk factors for neurologic complications related to cerebral
angiography. MATERIALS AND METHODS: A total of 2,899 consecutive cerebral digital …

Rationale: It is commonly stated that mortality from acute respiratory distress syndrome (ARDS)
and acute lung injury (ALI) is decreasing. Objectives: To systematically review the …

Objective: Depression often remains undertreated during pregnancy and there is growing
evidence that untoward perinatal outcomes can result. Our systematic review and meta-…