An evaluation of stakeholder engagement in comparative effectiveness research: lessons learned from SWOG S1415CD.

Stakeholder engagement is central to comparative effectiveness research yet there are gaps in definitions of success. We used a framework developed by Lavallee  defining effective engagement criteria to evaluate stakeholder engagement during a pragmatic cluster-randomized trial. Semi-structured interviews were developed from the framework and completed to learn about members' experiences.

The Safety of the Re-Opening of an Academic Medical Center Outpatient Endoscopy Unit During the COVID-19 Pandemic.

Background: The coronavirus disease 2019 (COVID-19) pandemic has spread globally leading to over 3,700,000 deaths. As COVID-19 cases stabilized, the re-opening of endoscopy centers potentially exposed patients and healthcare workers to viral infection. This study aims to determine risk of COVID-19 exposure among patients undergoing outpatient endoscopies in a tertiary care setting during the COVID-19 pandemic.

RHEMITT Score Predicts Rebleed After Capsule Endoscopy: First Validation at a U.S. Tertiary Care Center.

Background: Patients with obscure gastrointestinal bleeding undergo small bowel capsule endoscopy (SBCE), but often return for recurrent bleeding or anemia. The RHEMITT score evaluates patients based on 7 variables (heart failure, chronic kidney disease, Saurin P1/P2 lesions, major bleeding, incomplete SBCE, smoking status, and endoscopic treatment) and seeks to predict the risk of rebleeding.

Aims: This study aims to perform an external validation of the RHEMITT score in the United States.

Impact of Student-Run Clinics on Students' Attitudes Toward People Experiencing Homelessness.

Introduction: Student-run clinics can supplement medical education by exposing students to diverse clinical scenarios and collaborating with underresourced populations. We examined the impact of volunteering at THRIVE, a student-run bridge clinic located within sheltered housing for individuals with substance use disorder, on students' attitudes toward people experiencing homelessness (PEH).

Methods: This cohort study analyzed pre- and postsurvey matched responses from nonvolunteer and volunteer first-year medical students utilizing the Health Professional Attitudes Towards the Homeless (HPATHI) tool, totaled into three subcategories: Cynicism, Social Advocacy, and Personal Advocacy.

A large beam high efficiency radio frequency neutron spin flipper.

A design for a radio frequency (RF) neutron spin flipper obtained from magneto-static and neutron spin transport simulations is presented. The RF flipper constructed from this design provides a flipping probability of 0.999 or better for a beam size 6 cm wide and 15 cm high and a wavelength band between 0.