This paper examines the impact of political risk in Canada on the volatility of stock returns. Our
results suggest that political news associated with the possible separation of Quebec from …

Context: The World Health Organization Fracture Risk Assessment tool (FRAX) was developed
to identify patients at risk of sustaining a fragility fracture (FF). Objective: The objective of …

In this study, we investigate the short run effect of the 30 October 1995 Quebec referendum
on the common stock returns of Quebec firms. Our results show that the uncertainty …

Background The prevalence of comorbid anxiety and depressive disorders is high among
patients with chronic diseases in primary care, and is associated with increased morbidity and …

We develop exact mean–variance efficiency tests of the market portfolio in the context of (conditional
and unconditional) capital asset pricing models (CAPM), allowing for a wide class …

We propose exact simulation-based procedures for: (i) testing mean-variance efficiency when
the zero-beta rate is unknown; (ii) building confidence intervals for the zero-beta rate. On …

Our objective was to characterize T and B cell responses to vaccination with SARS-CoV-2
antigens in immunocompromised rheumatoid arthritis (RA) patients. In 22 RA patients, clinical …

Thromboembolism predominates coronavirus disease 2019 (COVID-19)'s coagulopathy,
but there is a paucity of reported arterial events and microangiopathy. 2 Acute infections are …

We study the problem of testing the error distribution in a multivariate linear regression (MLR)
model. The tests are functions of appropriately standardized multivariate least squares …

Objective. To evaluate 2 incremental levels of intervention designed to increase initiation of
osteoporosis treatment by primary care physicians (PCP) following fragility fractures (FF). …