An observational study is a type of epidemiological study design, which can take the form of
a cohort, a case–control, or a cross-sectional study. When presenting observational studies …

Background Medical-related professions are at high suicide risk. However, data are
contradictory and comparisons were not made between gender, occupation and specialties …

The views and recommendations made in this document do not represent the official
position of any publisher or professional medical society. This document has not been …

Importance Neurofilament light protein (NfL) is elevated in cerebrospinal fluid (CSF) of a
number of neurological conditions compared with healthy controls (HC) and is a candidate …

Importance Sepsis is present in many hospitalizations that culminate in death. The
contribution of sepsis to these deaths, and the extent to which they are preventable, is …

BACKGROUND Early reproductive failure is the most common complication of pregnancy
with only 30% of conceptions reaching live birth. Establishing a successful pregnancy …

Background To our knowledge, no publication providing overarching guidance on the
conduct of systematic reviews of observational studies of etiology exists. Methods and …

Importance Patients with atrial fibrillation (AF) who use a direct oral anticoagulant (DOAC)
and request elective surgery or procedure present a common clinical situation yet …

Objective To estimate the proportion of over-the-counter antibiotic requests or consultations
that resulted in non-prescription supply of antibiotics in community pharmacies globally …

The use of data from the real world to address clinical and policy-relevant questions that
cannot be answered using data from clinical trials is garnering increased interest. Indeed …