Observational studies provide crucial information early during epidemics and pandemics, but they often suffer from methodological shortcomings, which can be resolved. Scientific research is a ...

This was an investigator-initiated, single-centre, single-arm, observational, prospective cohort study. It adhered to the ethical guidelines of the 1975 Declaration of Helsinki and was approved by ...

Medical research is essential for advancing the understanding of health, diseases, and treatments. There are many types of studies that serve different purposes. Medical research, or health research, ...