… In this retrospective international observational study, we obtained data from the MSBase
registry and the Swedish MS registry, which prospectively collect patient data that are specific …

… We conducted a retrospective cohort study of 1,827 patients with confirmed COVID‐19 who
were hospitalized within the Yale‐New Haven Health System between March 14, 2020 and …

… We did a retrospective, observational, cohort study of patients with type 2 diabetes who
were enrolled prospectively in Taiwan's national health insurance research database between …

… We report the results of a retrospective cohort study of 58 589 patients identified in the UK
… Strengths of the study include: the large size of the cohort; the cohort is representative of the …

… In a retrospective observational cohort study, we collected clinical and demographic data
for all HIV-positive patients enrolled in care at 110 health facilities across all five provinces of …

… A retrospective observational cohort study was performed. Patients who presented to the
Hammersmith Hospital, London, with ANCA-associated vasculitis [granulomatosis with …

… We did a retrospective, observational cohort study of consecutive patients in Nigeria with
Lassa fever, who tested positive for LASV with RT-PCR, and were treated in Irrua Specialist …

… We designed this retrospective, observational cohort study to investigate the timing and
frequency of postoperative complications and mortality after emergency laparotomy, in order to …

… We did a retrospective, observational cohort study of women and children attending public
health facilities for antenatal care, institutional delivery, and immunisation services in six of …

… In this large retrospective observational cohort study covering four NHS Hospitals serving
a large urban population in Birmingham, United Kingdom, consecutive pairs of SpO2 and …