Background Minimal or mild endometriosis is frequently diagnosed in infertile women. It is
often treated by resection or ablation of the lesions, but whether this improves fertility has not …

OBJECTIVE: To estimate the effect of low-dose aspirin started in early pregnancy on the
incidence of preeclampsia and intrauterine growth restriction (IUGR). DATA SOURCES: A …

Background Although epidural corticosteroid injections are commonly used for sciatica,
their efficacy has not been established. Methods In a randomized, double-blind trial, we …

Background Chronic low back pain is a common problem with many treatments, few of which
have been rigorously evaluated. This randomized, placebo-controlled trial was designed to …

We assessed the effect of the method of feeding on respiratory and gastrointestinal illnesses
during the first 6 months of life among 776 infants born in New Brunswick, Canada. During …

Background The rates of preterm birth have increased in many countries, including Canada,
over the past 20 years. However, the factors underlying the increase are poorly understood. …

Background Group B streptococcal infections are an important cause of neonatal morbidity
and mortality. A rapid method for the detection of this organism in pregnant women at the time …

Background: Incontinence of stool and flatus are frequent complications of childbirth. We
examined the prevalence and possible causes of these adverse outcomes in a large cohort of …

Objective: This study was undertaken to determine whether a policy of delayed pushing for
nulliparous women with continuous-infusion epidural analgesia reduces the risk of difficult …

STUDY OBJECTIVE: To assess the relation between leisure time physical activity (LTPA)
during the first 20 weeks of pregnancy and the risk of developing pre-eclampsia and …